123255333012355 has 4 divisors (see below), whose sum is σ = 147906399614832. Its totient is φ = 98604266409880.

The previous prime is 123255333012281. The next prime is 123255333012377. The reversal of 123255333012355 is 553210333552321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123255333012355 - 2²¹ = 123255330915203 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12325533301231 + ... + 12325533301240.

It is an arithmetic number, because the mean of its divisors is an integer number (36976599903708).

Almost surely, 2^{123255333012355} is an apocalyptic number.

123255333012355 is a deficient number, since it is larger than the sum of its proper divisors (24651066602477).

123255333012355 is an equidigital number, since it uses as much as digits as its factorization.

123255333012355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24651066602476.

The product of its (nonzero) digits is 1215000, while the sum is 43.

Adding to 123255333012355 its reverse (553210333552321), we get a palindrome (676465666564676).

The spelling of 123255333012355 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, three hundred thirty-three million, twelve thousand, three hundred fifty-five".