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23101131112 = 232999573841
BaseRepresentation
bin10101100000111011…
…110100100101101000
32012121221212001101121
4111200323310211220
5334302342143422
614340145225024
71445316242323
oct254073644550
965557761347
1023101131112
119884a937a4
124588632174
13224200a767
1411920d57ba
159031398c7
hex560ef4968

23101131112 has 16 divisors (see below), whose sum is σ = 44808228900. Its totient is φ = 11152270080.

The previous prime is 23101131089. The next prime is 23101131113. The reversal of 23101131112 is 21113110132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22833023236 + 268107876 = 151106^2 + 16374^2 .

It is not an unprimeable number, because it can be changed into a prime (23101131113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49786689 + ... + 49787152.

Almost surely, 223101131112 is an apocalyptic number.

It is an amenable number.

23101131112 is a deficient number, since it is larger than the sum of its proper divisors (21707097788).

23101131112 is a wasteful number, since it uses less digits than its factorization.

23101131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99573876 (or 99573872 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 23101131112 its reverse (21113110132), we get a palindrome (44214241244).

The spelling of 23101131112 in words is "twenty-three billion, one hundred one million, one hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 29 58 116 232 99573841 199147682 398295364 796590728 2887641389 5775282778 11550565556 23101131112