10031021240 has 16 divisors (see below), whose sum is σ = 22569797880. Its totient is φ = 4012408480.

The previous prime is 10031021237. The next prime is 10031021251. The reversal of 10031021240 is 4212013001.

It is a super-2 number, since 2×10031021240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125387726 + ... + 125387805.

Almost surely, 2^10031021240 is an apocalyptic number.

10031021240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031021240 is an abundant number, since it is smaller than the sum of its proper divisors (12538776640).

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

10031021240 is a wasteful number, since it uses less digits than its factorization.

10031021240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250775542 (or 250775538 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10031021240 its reverse (4212013001), we get a palindrome (14243034241).

The spelling of 10031021240 in words is "ten billion, thirty-one million, twenty-one thousand, two hundred forty".