123340554035213 has 4 divisors (see below), whose sum is σ = 127319281584768. Its totient is φ = 119361826485660.

The previous prime is 123340554035207. The next prime is 123340554035239. The reversal of 123340554035213 is 312530455043321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123340554035213 - 2¹⁰ = 123340554034189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123340554035203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1989363774731 + ... + 1989363774792.

It is an arithmetic number, because the mean of its divisors is an integer number (31829820396192).

Almost surely, 2^{123340554035213} is an apocalyptic number.

It is an amenable number.

123340554035213 is a deficient number, since it is larger than the sum of its proper divisors (3978727549555).

123340554035213 is an equidigital number, since it uses as much as digits as its factorization.

123340554035213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978727549554.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 123340554035213 in words is "one hundred twenty-three trillion, three hundred forty billion, five hundred fifty-four million, thirty-five thousand, two hundred thirteen".