111231312010140 has 96 divisors (see below), whose sum is σ = 358500919472640. Its totient is φ = 25241391242496.

The previous prime is 111231312010109. The next prime is 111231312010201. The reversal of 111231312010140 is 41010213132111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 952590747 + ... + 952707506.

It is an arithmetic number, because the mean of its divisors is an integer number (3734384577840).

Almost surely, 2^{111231312010140} is an apocalyptic number.

111231312010140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111231312010140 is an abundant number, since it is smaller than the sum of its proper divisors (247269607462500).

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

111231312010140 is a wasteful number, since it uses less digits than its factorization.

111231312010140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905298411 (or 1905298409 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 111231312010140 its reverse (41010213132111), we get a palindrome (152241525142251).

The spelling of 111231312010140 in words is "one hundred eleven trillion, two hundred thirty-one billion, three hundred twelve million, ten thousand, one hundred forty".