122312031 has 8 divisors (see below), whose sum is σ = 163138560. Its totient is φ = 81513432.

The previous prime is 122312023. The next prime is 122312033. The reversal of 122312031 is 130213221.

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

It is not a de Polignac number, because 122312031 - 2³ = 122312023 is a prime.

It is a super-2 number, since 2×122312031² = 29920465854689922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122312031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312033) 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, 7576 + ... + 17378.

It is an arithmetic number, because the mean of its divisors is an integer number (20392320).

Almost surely, 2^122312031 is an apocalyptic number.

122312031 is a deficient number, since it is larger than the sum of its proper divisors (40826529).

122312031 is an equidigital number, since it uses as much as digits as its factorization.

122312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 122312031 is about 11059.4769767833. The cubic root of 122312031 is about 496.3900404431.

Adding to 122312031 its reverse (130213221), we get a palindrome (252525252).

The spelling of 122312031 in words is "one hundred twenty-two million, three hundred twelve thousand, thirty-one".