31004443401 has 8 divisors (see below), whose sum is σ = 41378151360. Its totient is φ = 20650182192.

The previous prime is 31004443391. The next prime is 31004443403. The reversal of 31004443401 is 10434440013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31004443401 - 2⁵ = 31004443369 is a prime.

It is a super-2 number, since 2×31004443401² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004443403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4857966 + ... + 4864343.

It is an arithmetic number, because the mean of its divisors is an integer number (5172268920).

Almost surely, 2^31004443401 is an apocalyptic number.

It is an amenable number.

31004443401 is a deficient number, since it is larger than the sum of its proper divisors (10373707959).

31004443401 is a wasteful number, since it uses less digits than its factorization.

31004443401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9723375.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31004443401 its reverse (10434440013), we get a palindrome (41438883414).

The spelling of 31004443401 in words is "thirty-one billion, four million, four hundred forty-three thousand, four hundred one".