123110221330542 has 16 divisors (see below), whose sum is σ = 260703998111952. Its totient is φ = 38622814535040.

The previous prime is 123110221330507. The next prime is 123110221330619. The reversal of 123110221330542 is 245033122011321.

It is a super-2 number, since 2×123110221330542² (a number of 29 digits) contains 22 as substring.

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, 603481477009 + ... + 603481477212.

It is an arithmetic number, because the mean of its divisors is an integer number (16293999881997).

Almost surely, 2^{123110221330542} is an apocalyptic number.

123110221330542 is an abundant number, since it is smaller than the sum of its proper divisors (137593776781410).

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

123110221330542 is a wasteful number, since it uses less digits than its factorization.

123110221330542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206962954243.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 123110221330542 its reverse (245033122011321), we get a palindrome (368143343341863).

The spelling of 123110221330542 in words is "one hundred twenty-three trillion, one hundred ten billion, two hundred twenty-one million, three hundred thirty thousand, five hundred forty-two".