10400231320 has 16 divisors (see below), whose sum is σ = 23400520560. Its totient is φ = 4160092512.

The previous prime is 10400231273. The next prime is 10400231351. The reversal of 10400231320 is 2313200401.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10400231294 and 10400231303.

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, 130002852 + ... + 130002931.

It is an arithmetic number, because the mean of its divisors is an integer number (1462532535).

Almost surely, 2^10400231320 is an apocalyptic number.

10400231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10400231320 is an abundant number, since it is smaller than the sum of its proper divisors (13000289240).

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

10400231320 is a wasteful number, since it uses less digits than its factorization.

10400231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260005794 (or 260005790 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10400231320 its reverse (2313200401), we get a palindrome (12713431721).

The spelling of 10400231320 in words is "ten billion, four hundred million, two hundred thirty-one thousand, three hundred twenty".