11080807631 has 4 divisors (see below), whose sum is σ = 11123923872. Its totient is φ = 11037691392.

The previous prime is 11080807627. The next prime is 11080807649. The reversal of 11080807631 is 13670808011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11080807631 - 2² = 11080807627 is a prime.

It is a super-2 number, since 2×11080807631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11080807591 and 11080807600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11080807831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21557735 + ... + 21558248.

It is an arithmetic number, because the mean of its divisors is an integer number (2780980968).

Almost surely, 2^11080807631 is an apocalyptic number.

11080807631 is a deficient number, since it is larger than the sum of its proper divisors (43116241).

11080807631 is an equidigital number, since it uses as much as digits as its factorization.

11080807631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43116240.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 11080807631 in words is "eleven billion, eighty million, eight hundred seven thousand, six hundred thirty-one".