1115022631 has 2 divisors, whose sum is σ = 1115022632. Its totient is φ = 1115022630.

The previous prime is 1115022617. The next prime is 1115022661. The reversal of 1115022631 is 1362205111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115022631 - 2⁹ = 1115022119 is a prime.

It is a super-2 number, since 2×1115022631² = 2486550935284324322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115022611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557511315 + 557511316.

It is an arithmetic number, because the mean of its divisors is an integer number (557511316).

Almost surely, 2^1115022631 is an apocalyptic number.

1115022631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115022631 is an equidigital number, since it uses as much as digits as its factorization.

1115022631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1115022631 is about 33391.9545848996. The cubic root of 1115022631 is about 1036.9581453902.

Adding to 1115022631 its reverse (1362205111), we get a palindrome (2477227742).

The spelling of 1115022631 in words is "one billion, one hundred fifteen million, twenty-two thousand, six hundred thirty-one".