31220122341 has 4 divisors (see below), whose sum is σ = 41626829792. Its totient is φ = 20813414892.

The previous prime is 31220122333. The next prime is 31220122361. The reversal of 31220122341 is 14322102213.

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 not a de Polignac number, because 31220122341 - 2³ = 31220122333 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 (31220122301) 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, 5203353721 + ... + 5203353726.

It is an arithmetic number, because the mean of its divisors is an integer number (10406707448).

Almost surely, 2^31220122341 is an apocalyptic number.

It is an amenable number.

31220122341 is a deficient number, since it is larger than the sum of its proper divisors (10406707451).

31220122341 is a wasteful number, since it uses less digits than its factorization.

31220122341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10406707450.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31220122341 its reverse (14322102213), we get a palindrome (45542224554).

The spelling of 31220122341 in words is "thirty-one billion, two hundred twenty million, one hundred twenty-two thousand, three hundred forty-one".