13031035961 has 2 divisors, whose sum is σ = 13031035962. Its totient is φ = 13031035960.

The previous prime is 13031035951. The next prime is 13031035991. The reversal of 13031035961 is 16953013031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7204614400 + 5826421561 = 84880^2 + 76331^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031035961 - 2¹⁰ = 13031034937 is a prime.

It is not a weakly prime, because it can be changed into another prime (13031035951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6515517980 + 6515517981.

It is an arithmetic number, because the mean of its divisors is an integer number (6515517981).

Almost surely, 2^13031035961 is an apocalyptic number.

It is an amenable number.

13031035961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13031035961 is an equidigital number, since it uses as much as digits as its factorization.

13031035961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 32.

Adding to 13031035961 its reverse (16953013031), we get a palindrome (29984048992).

The spelling of 13031035961 in words is "thirteen billion, thirty-one million, thirty-five thousand, nine hundred sixty-one".