31244410240120 has 128 divisors (see below), whose sum is σ = 89511480207360. Its totient is φ = 9531314933760.

The previous prime is 31244410240103. The next prime is 31244410240139. The reversal of 31244410240120 is 2104201444213.

It is a super-2 number, since 2×31244410240120² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 107773209 + ... + 108062728.

It is an arithmetic number, because the mean of its divisors is an integer number (699308439120).

Almost surely, 2^{31244410240120} is an apocalyptic number.

It is an amenable number.

31244410240120 is an abundant number, since it is smaller than the sum of its proper divisors (58267069967240).

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

31244410240120 is a wasteful number, since it uses less digits than its factorization.

31244410240120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215836013 (or 215836009 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 31244410240120 its reverse (2104201444213), we get a palindrome (33348611684333).

The spelling of 31244410240120 in words is "thirty-one trillion, two hundred forty-four billion, four hundred ten million, two hundred forty thousand, one hundred twenty".