10400040031020 has 48 divisors (see below), whose sum is σ = 29245091148000. Its totient is φ = 2761441240576.

The previous prime is 10400040031009. The next prime is 10400040031027. The reversal of 10400040031020 is 2013004000401.

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 (10400040031027) 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, 371947395 + ... + 371975354.

It is an arithmetic number, because the mean of its divisors is an integer number (609272732250).

Almost surely, 2^{10400040031020} is an apocalyptic number.

10400040031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10400040031020 is an abundant number, since it is smaller than the sum of its proper divisors (18845051116980).

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

10400040031020 is a wasteful number, since it uses less digits than its factorization.

10400040031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743922994 (or 743922992 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10400040031020 its reverse (2013004000401), we get a palindrome (12413044031421).

The spelling of 10400040031020 in words is "ten trillion, four hundred billion, forty million, thirty-one thousand, twenty".