123030245013421 has 4 divisors (see below), whose sum is σ = 123030278760672. Its totient is φ = 123030211266172.

The previous prime is 123030245013409. The next prime is 123030245013437. The reversal of 123030245013421 is 124310542030321.

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 123030245013421 - 2¹³ = 123030245005229 is a prime.

It is a super-3 number, since 3×123030245013421³ (a number of 43 digits) contains 333 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 (123030275013421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10636735 + ... + 18952588.

It is an arithmetic number, because the mean of its divisors is an integer number (30757569690168).

Almost surely, 2^{123030245013421} is an apocalyptic number.

It is an amenable number.

123030245013421 is a deficient number, since it is larger than the sum of its proper divisors (33747251).

123030245013421 is an equidigital number, since it uses as much as digits as its factorization.

123030245013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33747250.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 123030245013421 its reverse (124310542030321), we get a palindrome (247340787043742).

The spelling of 123030245013421 in words is "one hundred twenty-three trillion, thirty billion, two hundred forty-five million, thirteen thousand, four hundred twenty-one".