31440111032130 has 32 divisors (see below), whose sum is σ = 75456499325184. Its totient is φ = 8384003736576.

The previous prime is 31440111032003. The next prime is 31440111032159. The reversal of 31440111032130 is 3123011104413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31440111032130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9525474 + ... + 12394146.

It is an arithmetic number, because the mean of its divisors is an integer number (2358015603912).

Almost surely, 2^{31440111032130} is an apocalyptic number.

31440111032130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31440111032130 is an abundant number, since it is smaller than the sum of its proper divisors (44016388293054).

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

31440111032130 is a wasteful number, since it uses less digits than its factorization.

31440111032130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234010.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31440111032130 its reverse (3123011104413), we get a palindrome (34563122136543).

The spelling of 31440111032130 in words is "thirty-one trillion, four hundred forty billion, one hundred eleven million, thirty-two thousand, one hundred thirty".