31403222401 has 4 divisors (see below), whose sum is σ = 33056023600. Its totient is φ = 29750421204.

The previous prime is 31403222393. The next prime is 31403222437. The reversal of 31403222401 is 10422230413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31403222401 - 2³ = 31403222393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31403252401) 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, 826400571 + ... + 826400608.

It is an arithmetic number, because the mean of its divisors is an integer number (8264005900).

Almost surely, 2^31403222401 is an apocalyptic number.

It is an amenable number.

31403222401 is a deficient number, since it is larger than the sum of its proper divisors (1652801199).

31403222401 is a wasteful number, since it uses less digits than its factorization.

31403222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652801198.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31403222401 its reverse (10422230413), we get a palindrome (41825452814).

The spelling of 31403222401 in words is "thirty-one billion, four hundred three million, two hundred twenty-two thousand, four hundred one".