36631611031 has 2 divisors, whose sum is σ = 36631611032. Its totient is φ = 36631611030.

The previous prime is 36631611011. The next prime is 36631611053. The reversal of 36631611031 is 13011613663.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36631611031 - 2⁷ = 36631610903 is a prime.

It is a super-2 number, since 2×36631611031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36631610984 and 36631611002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36631611011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18315805515 + 18315805516.

It is an arithmetic number, because the mean of its divisors is an integer number (18315805516).

Almost surely, 2^36631611031 is an apocalyptic number.

36631611031 is a deficient number, since it is larger than the sum of its proper divisors (1).

36631611031 is an equidigital number, since it uses as much as digits as its factorization.

36631611031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 36631611031 in words is "thirty-six billion, six hundred thirty-one million, six hundred eleven thousand, thirty-one".