123022200221031 has 4 divisors (see below), whose sum is σ = 164029600294712. Its totient is φ = 82014800147352.

The previous prime is 123022200220993. The next prime is 123022200221071. The reversal of 123022200221031 is 130122002220321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123022200221031 - 2¹⁸ = 123022199958887 is a prime.

It is a super-2 number, since 2×123022200221031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123022200220989 and 123022200221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123022200221071) 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, 20503700036836 + ... + 20503700036841.

It is an arithmetic number, because the mean of its divisors is an integer number (41007400073678).

Almost surely, 2^{123022200221031} is an apocalyptic number.

123022200221031 is a deficient number, since it is larger than the sum of its proper divisors (41007400073681).

123022200221031 is an equidigital number, since it uses as much as digits as its factorization.

123022200221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41007400073680.

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

Adding to 123022200221031 its reverse (130122002220321), we get a palindrome (253144202441352).

The spelling of 123022200221031 in words is "one hundred twenty-three trillion, twenty-two billion, two hundred million, two hundred twenty-one thousand, thirty-one".