31422412213 has 4 divisors (see below), whose sum is σ = 33270789420. Its totient is φ = 29574035008.

The previous prime is 31422412207. The next prime is 31422412223. The reversal of 31422412213 is 31221422413.

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 15003065169 + 16419347044 = 122487^2 + 128138^2 .

It is a cyclic number.

It is not a de Polignac number, because 31422412213 - 2⁵ = 31422412181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422412223) 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, 924188578 + ... + 924188611.

It is an arithmetic number, because the mean of its divisors is an integer number (8317697355).

Almost surely, 2^31422412213 is an apocalyptic number.

It is an amenable number.

31422412213 is a deficient number, since it is larger than the sum of its proper divisors (1848377207).

31422412213 is a wasteful number, since it uses less digits than its factorization.

31422412213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848377206.

The product of its digits is 2304, while the sum is 25.

Adding to 31422412213 its reverse (31221422413), we get a palindrome (62643834626).

The spelling of 31422412213 in words is "thirty-one billion, four hundred twenty-two million, four hundred twelve thousand, two hundred thirteen".