123012205215235 has 16 divisors (see below), whose sum is σ = 168727628901312. Its totient is φ = 84338638416000.

The previous prime is 123012205215167. The next prime is 123012205215239. The reversal of 123012205215235 is 532512502210321.

It is not a de Polignac number, because 123012205215235 - 2¹⁵ = 123012205182467 is a prime.

It is a super-2 number, since 2×123012205215235² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123012205215235.

It is not an unprimeable number, because it can be changed into a prime (123012205215239) 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, 262012476 + ... + 262481545.

It is an arithmetic number, because the mean of its divisors is an integer number (10545476806332).

Almost surely, 2^{123012205215235} is an apocalyptic number.

123012205215235 is a deficient number, since it is larger than the sum of its proper divisors (45715423686077).

123012205215235 is an equidigital number, since it uses as much as digits as its factorization.

123012205215235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524500734.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 123012205215235 its reverse (532512502210321), we get a palindrome (655524707425556).

The spelling of 123012205215235 in words is "one hundred twenty-three trillion, twelve billion, two hundred five million, two hundred fifteen thousand, two hundred thirty-five".