123013203015401 has 4 divisors (see below), whose sum is σ = 123133686075204. Its totient is φ = 122892719955600.

The previous prime is 123013203015377. The next prime is 123013203015413. The reversal of 123013203015401 is 104510302310321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 97721607659776 + 25291595355625 = 9885424^2 + 5029075^2 .

It is a cyclic number.

It is not a de Polignac number, because 123013203015401 - 2¹⁸ = 123013202753257 is a prime.

It is a super-2 number, since 2×123013203015401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123013203015481) 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, 60241528370 + ... + 60241530411.

It is an arithmetic number, because the mean of its divisors is an integer number (30783421518801).

Almost surely, 2^{123013203015401} is an apocalyptic number.

It is an amenable number.

123013203015401 is a deficient number, since it is larger than the sum of its proper divisors (120483059803).

123013203015401 is a wasteful number, since it uses less digits than its factorization.

123013203015401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120483059802.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 123013203015401 its reverse (104510302310321), we get a palindrome (227523505325722).

The spelling of 123013203015401 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, fifteen thousand, four hundred one".