131231104403 has 16 divisors (see below), whose sum is σ = 150155765760. Its totient is φ = 112350882816.

The previous prime is 131231104387. The next prime is 131231104409. The reversal of 131231104403 is 304401132131.

It is a cyclic number.

It is not a de Polignac number, because 131231104403 - 2⁴ = 131231104387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131231104409) 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, 37959251 + ... + 37962707.

It is an arithmetic number, because the mean of its divisors is an integer number (9384735360).

Almost surely, 2^131231104403 is an apocalyptic number.

131231104403 is a deficient number, since it is larger than the sum of its proper divisors (18924661357).

131231104403 is a wasteful number, since it uses less digits than its factorization.

131231104403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8306.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131231104403 its reverse (304401132131), we get a palindrome (435632236534).

The spelling of 131231104403 in words is "one hundred thirty-one billion, two hundred thirty-one million, one hundred four thousand, four hundred three".