111023103012 has 48 divisors (see below), whose sum is σ = 261828158592. Its totient is φ = 36612092160.

The previous prime is 111023103011. The next prime is 111023103017. The reversal of 111023103012 is 210301320111.

It is a happy number.

It is a super-2 number, since 2×111023103012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111023102982 and 111023103000.

It is not an unprimeable number, because it can be changed into a prime (111023103011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217968 + ... + 1305944.

It is an arithmetic number, because the mean of its divisors is an integer number (5454753304).

Almost surely, 2^111023103012 is an apocalyptic number.

111023103012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111023103012 is an abundant number, since it is smaller than the sum of its proper divisors (150805055580).

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

111023103012 is a wasteful number, since it uses less digits than its factorization.

111023103012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89108 (or 89106 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111023103012 its reverse (210301320111), we get a palindrome (321324423123).

The spelling of 111023103012 in words is "one hundred eleven billion, twenty-three million, one hundred three thousand, twelve".