123220232131 has 8 divisors (see below), whose sum is σ = 128590857504. Its totient is φ = 117850708800.

The previous prime is 123220232123. The next prime is 123220232137. The reversal of 123220232131 is 131232022321.

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

It is a cyclic number.

It is not a de Polignac number, because 123220232131 - 2³ = 123220232123 is a prime.

It is a super-2 number, since 2×123220232131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123220232137) 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, 42826 + ... + 498271.

It is an arithmetic number, because the mean of its divisors is an integer number (16073857188).

Almost surely, 2^123220232131 is an apocalyptic number.

123220232131 is a deficient number, since it is larger than the sum of its proper divisors (5370625373).

123220232131 is an equidigital number, since it uses as much as digits as its factorization.

123220232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551021.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123220232131 its reverse (131232022321), we get a palindrome (254452254452).

The spelling of 123220232131 in words is "one hundred twenty-three billion, two hundred twenty million, two hundred thirty-two thousand, one hundred thirty-one".