31055004401 has 4 divisors (see below), whose sum is σ = 31175841252. Its totient is φ = 30934167552.

The previous prime is 31055004389. The next prime is 31055004437. The reversal of 31055004401 is 10440055013.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26814390001 + 4240614400 = 163751^2 + 65120^2 .

It is a cyclic number.

It is not a de Polignac number, because 31055004401 - 2¹⁰ = 31055003377 is a prime.

It is a super-2 number, since 2×31055004401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31055004481) 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, 60418040 + ... + 60418553.

It is an arithmetic number, because the mean of its divisors is an integer number (7793960313).

Almost surely, 2^31055004401 is an apocalyptic number.

It is an amenable number.

31055004401 is a deficient number, since it is larger than the sum of its proper divisors (120836851).

31055004401 is a wasteful number, since it uses less digits than its factorization.

31055004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120836850.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 31055004401 its reverse (10440055013), we get a palindrome (41495059414).

The spelling of 31055004401 in words is "thirty-one billion, fifty-five million, four thousand, four hundred one".