112123011231 has 144 divisors (see below), whose sum is σ = 211265597088. Its totient is φ = 56628633600.

The previous prime is 112123011229. The next prime is 112123011241. The reversal of 112123011231 is 132110321211.

It is not a de Polignac number, because 112123011231 - 2¹ = 112123011229 is a prime.

It is a super-2 number, since 2×112123011231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112123011241) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 70207725 + ... + 70209321.

It is an arithmetic number, because the mean of its divisors is an integer number (1467122202).

Almost surely, 2^112123011231 is an apocalyptic number.

112123011231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

112123011231 is a deficient number, since it is larger than the sum of its proper divisors (99142585857).

112123011231 is a wasteful number, since it uses less digits than its factorization.

112123011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 112123011231 its reverse (132110321211), we get a palindrome (244233332442).

The spelling of 112123011231 in words is "one hundred twelve billion, one hundred twenty-three million, eleven thousand, two hundred thirty-one".