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311001012121422 = 23723674805182351
BaseRepresentation
bin100011010110110101001000…
…0110110100010111101001110
31111210011101222021002100202010
41012231222100312202331032
5311230420033100341142
63021235520445042050
7122336040000600630
oct10655522066427516
91453141867070663
10311001012121422
1190104874621217
122aa6a0b5856326
131046c36741b38c
1456b275a592a50
1525e4cb3ce0e9c
hex11ada90da2f4e

311001012121422 has 64 divisors (see below), whose sum is σ = 752837529452544. Its totient is φ = 83725497266400.

The previous prime is 311001012121409. The next prime is 311001012121433. The reversal of 311001012121422 is 224121210100113.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2402526454 + ... + 2402655897.

It is an arithmetic number, because the mean of its divisors is an integer number (11763086397696).

Almost surely, 2311001012121422 is an apocalyptic number.

311001012121422 is an abundant number, since it is smaller than the sum of its proper divisors (441836517331122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311001012121422 is a wasteful number, since it uses less digits than its factorization.

311001012121422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4805182453.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 311001012121422 its reverse (224121210100113), we get a palindrome (535122222221535).

The spelling of 311001012121422 in words is "three hundred eleven trillion, one billion, twelve million, one hundred twenty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 23 42 46 67 69 134 138 161 201 322 402 469 483 938 966 1407 1541 2814 3082 4623 9246 10787 21574 32361 64722 4805182351 9610364702 14415547053 28831094106 33636276457 67272552914 100908829371 110519194073 201817658742 221038388146 321947217517 331557582219 643894435034 663115164438 773634358511 965841652551 1547268717022 1931683305102 2253630522619 2320903075533 4507261045238 4641806151066 6760891567857 7404786002891 13521783135714 14809572005782 22214358008673 44428716017346 51833502020237 103667004040474 155500506060711 311001012121422