123001002131299 has 4 divisors (see below), whose sum is σ = 130236355197864. Its totient is φ = 115765649064736.

The previous prime is 123001002131291. The next prime is 123001002131341. The reversal of 123001002131299 is 992131200100321.

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

It is a cyclic number.

It is not a de Polignac number, because 123001002131299 - 2³ = 123001002131291 is a prime.

It is a super-2 number, since 2×123001002131299² (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 (123001002131291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3617676533257 + ... + 3617676533290.

It is an arithmetic number, because the mean of its divisors is an integer number (32559088799466).

Almost surely, 2^{123001002131299} is an apocalyptic number.

123001002131299 is a deficient number, since it is larger than the sum of its proper divisors (7235353066565).

123001002131299 is an equidigital number, since it uses as much as digits as its factorization.

123001002131299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235353066564.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 123001002131299 in words is "one hundred twenty-three trillion, one billion, two million, one hundred thirty-one thousand, two hundred ninety-nine".