123214012042421 has 8 divisors (see below), whose sum is σ = 125248085968824. Its totient is φ = 121180395280320.

The previous prime is 123214012042417. The next prime is 123214012042447. The reversal of 123214012042421 is 124240210412321.

It can be written as a sum of positive squares in 4 ways, for example, as 5091589167025 + 118122422875396 = 2256455^2 + 10868414^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123214012042421 - 2² = 123214012042417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123214012042481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113747570 + ... + 114825683.

It is an arithmetic number, because the mean of its divisors is an integer number (15656010746103).

Almost surely, 2^{123214012042421} is an apocalyptic number.

It is an amenable number.

123214012042421 is a deficient number, since it is larger than the sum of its proper divisors (2034073926403).

123214012042421 is an equidigital number, since it uses as much as digits as its factorization.

123214012042421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228582151.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 123214012042421 its reverse (124240210412321), we get a palindrome (247454222454742).

The spelling of 123214012042421 in words is "one hundred twenty-three trillion, two hundred fourteen billion, twelve million, forty-two thousand, four hundred twenty-one".