13231129973 has 2 divisors, whose sum is σ = 13231129974. Its totient is φ = 13231129972.

The previous prime is 13231129963. The next prime is 13231130009. The reversal of 13231129973 is 37992113231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12718877284 + 512252689 = 112778^2 + 22633^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231129973 - 2¹² = 13231125877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13231129973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231129963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615564986 + 6615564987.

It is an arithmetic number, because the mean of its divisors is an integer number (6615564987).

Almost surely, 2^13231129973 is an apocalyptic number.

It is an amenable number.

13231129973 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231129973 is an equidigital number, since it uses as much as digits as its factorization.

13231129973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The spelling of 13231129973 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty-nine thousand, nine hundred seventy-three".