111213431352 has 64 divisors (see below), whose sum is σ = 309009837600. Its totient is φ = 37061107200.

The previous prime is 111213431309. The next prime is 111213431353. The reversal of 111213431352 is 253134312111.

111213431352 is a `hidden beast` number, since 1 + 11 + 213 + 431 + 3 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213431353) 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, 752352 + ... + 887952.

Almost surely, 2^111213431352 is an apocalyptic number.

111213431352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111213431352 is an abundant number, since it is smaller than the sum of its proper divisors (197796406248).

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

111213431352 is a wasteful number, since it uses less digits than its factorization.

111213431352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139413 (or 139403 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

Adding to 111213431352 its reverse (253134312111), we get a palindrome (364347743463).

The spelling of 111213431352 in words is "one hundred eleven billion, two hundred thirteen million, four hundred thirty-one thousand, three hundred fifty-two".