123311022 has 16 divisors (see below), whose sum is σ = 246806352. Its totient is φ = 41072960.

The previous prime is 123311011. The next prime is 123311051. The reversal of 123311022 is 220113321.

It is a junction number, because it is equal to n+sod(n) for n = 123310992 and 123311010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948 + ... + 15824.

It is an arithmetic number, because the mean of its divisors is an integer number (15425397).

Almost surely, 2^123311022 is an apocalyptic number.

123311022 is an abundant number, since it is smaller than the sum of its proper divisors (123495330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123311022 is a wasteful number, since it uses less digits than its factorization.

123311022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15363.

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

The square root of 123311022 is about 11104.5496081561. The cubic root of 123311022 is about 497.7378097597.

Adding to 123311022 its reverse (220113321), we get a palindrome (343424343).

The spelling of 123311022 in words is "one hundred twenty-three million, three hundred eleven thousand, twenty-two".