123231000020030 has 64 divisors (see below), whose sum is σ = 260624289405312. Its totient is φ = 41071316060160.

The previous prime is 123231000020027. The next prime is 123231000020119. The reversal of 123231000020030 is 30020000132321.

It is a junction number, because it is equal to n+sod(n) for n = 123231000019990 and 123231000020008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76709759 + ... + 78299738.

It is an arithmetic number, because the mean of its divisors is an integer number (4072254521958).

Almost surely, 2^{123231000020030} is an apocalyptic number.

123231000020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123231000020030 is an abundant number, since it is smaller than the sum of its proper divisors (137393289385282).

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

123231000020030 is a wasteful number, since it uses less digits than its factorization.

123231000020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155009829.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 123231000020030 its reverse (30020000132321), we get a palindrome (153251000152351).

The spelling of 123231000020030 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, twenty thousand, thirty".