123013203015049 has 2 divisors, whose sum is σ = 123013203015050. Its totient is φ = 123013203015048.

The previous prime is 123013203015029. The next prime is 123013203015077. The reversal of 123013203015049 is 940510302310321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99875178975049 + 23138024040000 = 9993757^2 + 4810200^2 .

It is a cyclic number.

It is not a de Polignac number, because 123013203015049 - 2¹³ = 123013203006857 is a prime.

It is not a weakly prime, because it can be changed into another prime (123013203015029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61506601507524 + 61506601507525.

It is an arithmetic number, because the mean of its divisors is an integer number (61506601507525).

Almost surely, 2^{123013203015049} is an apocalyptic number.

It is an amenable number.

123013203015049 is a deficient number, since it is larger than the sum of its proper divisors (1).

123013203015049 is an equidigital number, since it uses as much as digits as its factorization.

123013203015049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 123013203015049 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, fifteen thousand, forty-nine".