103231561456 has 20 divisors (see below), whose sum is σ = 201450083800. Its totient is φ = 51244443072.

The previous prime is 103231561453. The next prime is 103231561471. The reversal of 103231561456 is 654165132301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231561453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23206311 + ... + 23210758.

It is an arithmetic number, because the mean of its divisors is an integer number (10072504190).

Almost surely, 2^103231561456 is an apocalyptic number.

103231561456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

103231561456 is a deficient number, since it is larger than the sum of its proper divisors (98218522344).

103231561456 is a wasteful number, since it uses less digits than its factorization.

103231561456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46417216 (or 46417210 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 103231561456 its reverse (654165132301), we get a palindrome (757396693757).

The spelling of 103231561456 in words is "one hundred three billion, two hundred thirty-one million, five hundred sixty-one thousand, four hundred fifty-six".