111131023232102 has 4 divisors (see below), whose sum is σ = 166696534848156. Its totient is φ = 55565511616050.

The previous prime is 111131023232063. The next prime is 111131023232123. The reversal of 111131023232102 is 201232320131111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×111131023232102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27782755808024 + ... + 27782755808027.

It is an arithmetic number, because the mean of its divisors is an integer number (41674133712039).

Almost surely, 2^{111131023232102} is an apocalyptic number.

111131023232102 is a deficient number, since it is larger than the sum of its proper divisors (55565511616054).

111131023232102 is an equidigital number, since it uses as much as digits as its factorization.

111131023232102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55565511616053.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 111131023232102 its reverse (201232320131111), we get a palindrome (312363343363213).

The spelling of 111131023232102 in words is "one hundred eleven trillion, one hundred thirty-one billion, twenty-three million, two hundred thirty-two thousand, one hundred two".