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1112201031 = 311315720897
BaseRepresentation
bin100001001001010…
…1101011101000111
32212111210122222210
41002102231131013
54234210413111
6302210154503
736363360414
oct10222553507
92774718883
101112201031
11520899107
12270582a33
13149563326
14a79d710b
15679960a6
hex424ad747

1112201031 has 16 divisors (see below), whose sum is σ = 1505659104. Its totient is φ = 730189824.

The previous prime is 1112201021. The next prime is 1112201033. The reversal of 1112201031 is 1301022111.

It is not a de Polignac number, because 1112201031 - 29 = 1112200519 is a prime.

It is a super-2 number, since 2×11122010312 = 2473982266714925922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1112200998 and 1112201016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112201033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42775 + ... + 63671.

It is an arithmetic number, because the mean of its divisors is an integer number (94103694).

Almost surely, 21112201031 is an apocalyptic number.

1112201031 is a deficient number, since it is larger than the sum of its proper divisors (393458073).

1112201031 is a wasteful number, since it uses less digits than its factorization.

1112201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21170.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1112201031 is about 33349.6781243837. The cubic root of 1112201031 is about 1036.0827214275.

Adding to 1112201031 its reverse (1301022111), we get a palindrome (2413223142).

The spelling of 1112201031 in words is "one billion, one hundred twelve million, two hundred one thousand, thirty-one".

Divisors: 1 3 113 157 339 471 17741 20897 53223 62691 2361361 3280829 7084083 9842487 370733677 1112201031