11031551401 has 32 divisors (see below), whose sum is σ = 12312558720. Its totient is φ = 9819339264.

The previous prime is 11031551371. The next prime is 11031551417. The reversal of 11031551401 is 10415513011.

It is a cyclic number.

It is not a de Polignac number, because 11031551401 - 2⁹ = 11031550889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031551501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21672735 + ... + 21673243.

It is an arithmetic number, because the mean of its divisors is an integer number (384767460).

Almost surely, 2^11031551401 is an apocalyptic number.

It is an amenable number.

11031551401 is a deficient number, since it is larger than the sum of its proper divisors (1281007319).

11031551401 is a wasteful number, since it uses less digits than its factorization.

11031551401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 300, while the sum is 22.

The spelling of 11031551401 in words is "eleven billion, thirty-one million, five hundred fifty-one thousand, four hundred one".