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1311210101022 = 23567313852127
BaseRepresentation
bin10011000101001010001…
…101100101100100011110
311122100110111010120212220
4103011022031211210132
5132440324241213042
62442210035010210
7163506002651553
oct23051215454436
94570414116786
101311210101022
11466098a11a98
12192155739966
1396853704903
144766a30aa2a
15241931668ec
hex1314a36591e

1311210101022 has 16 divisors (see below), whose sum is σ = 2622467108352. Its totient is φ = 437062215960.

The previous prime is 1311210100973. The next prime is 1311210101027. The reversal of 1311210101022 is 2201010121131.

It is a junction number, because it is equal to n+sod(n) for n = 1311210100992 and 1311210101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311210101027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585678 + ... + 2266449.

It is an arithmetic number, because the mean of its divisors is an integer number (163904194272).

Almost surely, 21311210101022 is an apocalyptic number.

1311210101022 is an abundant number, since it is smaller than the sum of its proper divisors (1311257007330).

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

1311210101022 is a wasteful number, since it uses less digits than its factorization.

1311210101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908863.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1311210101022 its reverse (2201010121131), we get a palindrome (3512220222153).

The spelling of 1311210101022 in words is "one trillion, three hundred eleven billion, two hundred ten million, one hundred one thousand, twenty-two".

Divisors: 1 2 3 6 56731 113462 170193 340386 3852127 7704254 11556381 23112762 218535016837 437070033674 655605050511 1311210101022