31220240114040 has 64 divisors (see below), whose sum is σ = 93662326058400. Its totient is φ = 8325254633472.

The previous prime is 31220240114033. The next prime is 31220240114059. The reversal of 31220240114040 is 4041104202213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 31220240114040.

It is a congruent number.

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, 4892956 + ... + 9294164.

Almost surely, 2^{31220240114040} is an apocalyptic number.

31220240114040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31220240114040 is an abundant number, since it is smaller than the sum of its proper divisors (62442085944360).

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

31220240114040 is a wasteful number, since it uses less digits than its factorization.

31220240114040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460336 (or 4460332 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31220240114040 its reverse (4041104202213), we get a palindrome (35261344316253).

The spelling of 31220240114040 in words is "thirty-one trillion, two hundred twenty billion, two hundred forty million, one hundred fourteen thousand, forty".