1130887631 has 2 divisors, whose sum is σ = 1130887632. Its totient is φ = 1130887630.

The previous prime is 1130887613. The next prime is 1130887663. The reversal of 1130887631 is 1367880311.

Together with previous prime (1130887613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1130887631 - 2¹⁸ = 1130625487 is a prime.

It is a super-2 number, since 2×1130887631² = 2557813667897584322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130887691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565443815 + 565443816.

It is an arithmetic number, because the mean of its divisors is an integer number (565443816).

Almost surely, 2^1130887631 is an apocalyptic number.

1130887631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130887631 is an equidigital number, since it uses as much as digits as its factorization.

1130887631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1130887631 is about 33628.6727510914. The cubic root of 1130887631 is about 1041.8530913217.

The spelling of 1130887631 in words is "one billion, one hundred thirty million, eight hundred eighty-seven thousand, six hundred thirty-one".