31422152309 has 4 divisors (see below), whose sum is σ = 31433207616. Its totient is φ = 31411097004.

The previous prime is 31422152303. The next prime is 31422152323. The reversal of 31422152309 is 90325122413.

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 31422152309 - 2²⁰ = 31421103733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422152303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5523389 + ... + 5529074.

It is an arithmetic number, because the mean of its divisors is an integer number (7858301904).

Almost surely, 2^31422152309 is an apocalyptic number.

It is an amenable number.

31422152309 is a deficient number, since it is larger than the sum of its proper divisors (11055307).

31422152309 is a wasteful number, since it uses less digits than its factorization.

31422152309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11055306.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 31422152309 in words is "thirty-one billion, four hundred twenty-two million, one hundred fifty-two thousand, three hundred nine".