13231123049 has 2 divisors, whose sum is σ = 13231123050. Its totient is φ = 13231123048.

The previous prime is 13231122977. The next prime is 13231123093. The reversal of 13231123049 is 94032113231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10646112400 + 2585010649 = 103180^2 + 50843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231123049 is a prime.

It is not a weakly prime, because it can be changed into another prime (13231123099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615561524 + 6615561525.

It is an arithmetic number, because the mean of its divisors is an integer number (6615561525).

Almost surely, 2^13231123049 is an apocalyptic number.

It is an amenable number.

13231123049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231123049 is an equidigital number, since it uses as much as digits as its factorization.

13231123049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 13231123049 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty-three thousand, forty-nine".