123021210023142 has 16 divisors (see below), whose sum is σ = 246042598423872. Its totient is φ = 41007040278120.

The previous prime is 123021210023123. The next prime is 123021210023147. The reversal of 123021210023142 is 241320012120321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021210023147) 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, 2568417 + ... + 15894627.

It is an arithmetic number, because the mean of its divisors is an integer number (15377662401492).

Almost surely, 2^{123021210023142} is an apocalyptic number.

123021210023142 is an abundant number, since it is smaller than the sum of its proper divisors (123021388400730).

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

123021210023142 is a wasteful number, since it uses less digits than its factorization.

123021210023142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14864803.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123021210023142 its reverse (241320012120321), we get a palindrome (364341222143463).

The spelling of 123021210023142 in words is "one hundred twenty-three trillion, twenty-one billion, two hundred ten million, twenty-three thousand, one hundred forty-two".