11137021631 has 2 divisors, whose sum is σ = 11137021632. Its totient is φ = 11137021630.

The previous prime is 11137021573. The next prime is 11137021633. The reversal of 11137021631 is 13612073111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11137021631 - 2¹⁴ = 11137005247 is a prime.

It is a super-2 number, since 2×11137021631² (a number of 21 digits) contains 22 as substring.

Together with 11137021633, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11137021631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11137021633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5568510815 + 5568510816.

It is an arithmetic number, because the mean of its divisors is an integer number (5568510816).

Almost surely, 2^11137021631 is an apocalyptic number.

11137021631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11137021631 is an equidigital number, since it uses as much as digits as its factorization.

11137021631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 11137021631 its reverse (13612073111), we get a palindrome (24749094742).

The spelling of 11137021631 in words is "eleven billion, one hundred thirty-seven million, twenty-one thousand, six hundred thirty-one".