123020353134250 has 64 divisors (see below), whose sum is σ = 270555307626240. Its totient is φ = 41293545096000.

The previous prime is 123020353134247. The next prime is 123020353134253. The reversal of 123020353134250 is 52431353020321.

It is an interprime number because it is at equal distance from previous prime (123020353134247) and next prime (123020353134253).

It is not an unprimeable number, because it can be changed into a prime (123020353134253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1720528630 + ... + 1720600129.

It is an arithmetic number, because the mean of its divisors is an integer number (4227426681660).

Almost surely, 2^{123020353134250} is an apocalyptic number.

123020353134250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123020353134250 is an abundant number, since it is smaller than the sum of its proper divisors (147534954491990).

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

123020353134250 is a wasteful number, since it uses less digits than its factorization.

123020353134250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441128800 (or 3441128790 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 123020353134250 in words is "one hundred twenty-three trillion, twenty billion, three hundred fifty-three million, one hundred thirty-four thousand, two hundred fifty".