13381631033 has 2 divisors, whose sum is σ = 13381631034. Its totient is φ = 13381631032.

The previous prime is 13381630993. The next prime is 13381631077. The reversal of 13381631033 is 33013618331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12049891984 + 1331739049 = 109772^2 + 36493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13381631033 is a prime.

It is not a weakly prime, because it can be changed into another prime (13381633033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6690815516 + 6690815517.

It is an arithmetic number, because the mean of its divisors is an integer number (6690815517).

Almost surely, 2^13381631033 is an apocalyptic number.

It is an amenable number.

13381631033 is a deficient number, since it is larger than the sum of its proper divisors (1).

13381631033 is an equidigital number, since it uses as much as digits as its factorization.

13381631033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 13381631033 in words is "thirteen billion, three hundred eighty-one million, six hundred thirty-one thousand, thirty-three".