123212312030220 has 48 divisors (see below), whose sum is σ = 394279398498048. Its totient is φ = 28162814178240.

The previous prime is 123212312030189. The next prime is 123212312030221. The reversal of 123212312030220 is 22030213212321.

It is a super-2 number, since 2×123212312030220² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123212312030221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146681323426 + ... + 146681324265.

It is an arithmetic number, because the mean of its divisors is an integer number (8214154135376).

Almost surely, 2^{123212312030220} is an apocalyptic number.

123212312030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123212312030220 is an abundant number, since it is smaller than the sum of its proper divisors (271067086467828).

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

123212312030220 is a wasteful number, since it uses less digits than its factorization.

123212312030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293362647710 (or 293362647708 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123212312030220 its reverse (22030213212321), we get a palindrome (145242525242541).

The spelling of 123212312030220 in words is "one hundred twenty-three trillion, two hundred twelve billion, three hundred twelve million, thirty thousand, two hundred twenty".