10131320040 has 64 divisors (see below), whose sum is σ = 30401740800. Its totient is φ = 2700993792.

The previous prime is 10131320039. The next prime is 10131320041. The reversal of 10131320040 is 4002313101.

It is an interprime number because it is at equal distance from previous prime (10131320039) and next prime (10131320041).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10131320041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606034 + ... + 622526.

It is an arithmetic number, because the mean of its divisors is an integer number (475027200).

Almost surely, 2^10131320040 is an apocalyptic number.

10131320040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10131320040 is an abundant number, since it is smaller than the sum of its proper divisors (20270420760).

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

10131320040 is a wasteful number, since it uses less digits than its factorization.

10131320040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21626 (or 21622 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10131320040 its reverse (4002313101), we get a palindrome (14133633141).

The spelling of 10131320040 in words is "ten billion, one hundred thirty-one million, three hundred twenty thousand, forty".