10131244440 has 64 divisors (see below), whose sum is σ = 30406289760. Its totient is φ = 2700549120.

The previous prime is 10131244433. The next prime is 10131244457. The reversal of 10131244440 is 4444213101.

It is a super-2 number, since 2×10131244440² (a number of 21 digits) contains 22 as substring.

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 10131244440.

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, 297910 + ... + 330170.

Almost surely, 2^10131244440 is an apocalyptic number.

10131244440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10131244440 is an abundant number, since it is smaller than the sum of its proper divisors (20275045320).

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

10131244440 is a wasteful number, since it uses less digits than its factorization.

10131244440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34892 (or 34888 counting only the distinct ones).

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

Adding to 10131244440 its reverse (4444213101), we get a palindrome (14575457541).

The spelling of 10131244440 in words is "ten billion, one hundred thirty-one million, two hundred forty-four thousand, four hundred forty".