111312103210 has 64 divisors (see below), whose sum is σ = 252136488960. Its totient is φ = 34370406720.

The previous prime is 111312103183. The next prime is 111312103219. The reversal of 111312103210 is 12301213111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111312103219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 593130 + ... + 757909.

It is an arithmetic number, because the mean of its divisors is an integer number (3939632640).

Almost surely, 2^111312103210 is an apocalyptic number.

111312103210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111312103210 is an abundant number, since it is smaller than the sum of its proper divisors (140824385750).

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

111312103210 is a wasteful number, since it uses less digits than its factorization.

111312103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351171.

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

Adding to 111312103210 its reverse (12301213111), we get a palindrome (123613316321).

The spelling of 111312103210 in words is "one hundred eleven billion, three hundred twelve million, one hundred three thousand, two hundred ten".