123212021012130 has 256 divisors, whose sum is σ = 317684809728000. Its totient is φ = 30474435747840.

The previous prime is 123212021012123. The next prime is 123212021012153. The reversal of 123212021012130 is 31210120212321.

It is a junction number, because it is equal to n+sod(n) for n = 123212021012097 and 123212021012106.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26502906046 + ... + 26502910694.

It is an arithmetic number, because the mean of its divisors is an integer number (1240956288000).

Almost surely, 2^{123212021012130} is an apocalyptic number.

123212021012130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123212021012130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158842404864000).

123212021012130 is an abundant number, since it is smaller than the sum of its proper divisors (194472788715870).

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

123212021012130 is a wasteful number, since it uses less digits than its factorization.

123212021012130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 123212021012130 its reverse (31210120212321), we get a palindrome (154422141224451).

The spelling of 123212021012130 in words is "one hundred twenty-three trillion, two hundred twelve billion, twenty-one million, twelve thousand, one hundred thirty".