123121302131030 has 32 divisors (see below), whose sum is σ = 257058377508096. Its totient is φ = 41582972829024.

The previous prime is 123121302131029. The next prime is 123121302131119. The reversal of 123121302131030 is 30131203121321.

123121302131030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123121302130987 and 123121302131005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13125933704 + ... + 13125943083.

It is an arithmetic number, because the mean of its divisors is an integer number (8033074297128).

Almost surely, 2^{123121302131030} is an apocalyptic number.

123121302131030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123121302131030 is an abundant number, since it is smaller than the sum of its proper divisors (133937075377066).

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

123121302131030 is a wasteful number, since it uses less digits than its factorization.

123121302131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26251876868.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 123121302131030 its reverse (30131203121321), we get a palindrome (153252505252351).

The spelling of 123121302131030 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, three hundred two million, one hundred thirty-one thousand, thirty".