123014203450421 has 2 divisors, whose sum is σ = 123014203450422. Its totient is φ = 123014203450420.

The previous prime is 123014203450387. The next prime is 123014203450433. The reversal of 123014203450421 is 124054302410321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69946693735396 + 53067509715025 = 8363414^2 + 7284745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123014203450421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123014203450441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61507101725210 + 61507101725211.

It is an arithmetic number, because the mean of its divisors is an integer number (61507101725211).

Almost surely, 2^{123014203450421} is an apocalyptic number.

It is an amenable number.

123014203450421 is a deficient number, since it is larger than the sum of its proper divisors (1).

123014203450421 is an equidigital number, since it uses as much as digits as its factorization.

123014203450421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 123014203450421 its reverse (124054302410321), we get a palindrome (247068505860742).

The spelling of 123014203450421 in words is "one hundred twenty-three trillion, fourteen billion, two hundred three million, four hundred fifty thousand, four hundred twenty-one".