123253368021373 has 4 divisors (see below), whose sum is σ = 123253523051680. Its totient is φ = 123253212991068.

The previous prime is 123253368021361. The next prime is 123253368021389. The reversal of 123253368021373 is 373120863352321.

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 123253368021373 - 2⁵ = 123253368021341 is a prime.

It is a super-2 number, since 2×123253368021373² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123253368021673) 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, 76316433 + ... + 77914726.

It is an arithmetic number, because the mean of its divisors is an integer number (30813380762920).

Almost surely, 2^{123253368021373} is an apocalyptic number.

It is an amenable number.

123253368021373 is a deficient number, since it is larger than the sum of its proper divisors (155030307).

123253368021373 is an equidigital number, since it uses as much as digits as its factorization.

123253368021373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155030306.

The product of its (nonzero) digits is 3265920, while the sum is 49.

The spelling of 123253368021373 in words is "one hundred twenty-three trillion, two hundred fifty-three billion, three hundred sixty-eight million, twenty-one thousand, three hundred seventy-three".