123012242215535 has 8 divisors (see below), whose sum is σ = 147633893864736. Its totient is φ = 98396991635040.

The previous prime is 123012242215517. The next prime is 123012242215573. The reversal of 123012242215535 is 535512242210321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123012242215535 - 2²⁰ = 123012241166959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600224896 + ... + 1600301765.

It is an arithmetic number, because the mean of its divisors is an integer number (18454236733092).

Almost surely, 2^{123012242215535} is an apocalyptic number.

123012242215535 is a deficient number, since it is larger than the sum of its proper divisors (24621651649201).

123012242215535 is an equidigital number, since it uses as much as digits as its factorization.

123012242215535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200534353.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 123012242215535 its reverse (535512242210321), we get a palindrome (658524484425856).

The spelling of 123012242215535 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty-two million, two hundred fifteen thousand, five hundred thirty-five".