123000341055421 has 2 divisors, whose sum is σ = 123000341055422. Its totient is φ = 123000341055420.

The previous prime is 123000341055329. The next prime is 123000341055451. The reversal of 123000341055421 is 124550143000321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121334873374521 + 1665467680900 = 11015211^2 + 1290530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123000341055421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123000341055451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61500170527710 + 61500170527711.

It is an arithmetic number, because the mean of its divisors is an integer number (61500170527711).

Almost surely, 2^{123000341055421} is an apocalyptic number.

It is an amenable number.

123000341055421 is a deficient number, since it is larger than the sum of its proper divisors (1).

123000341055421 is an equidigital number, since it uses as much as digits as its factorization.

123000341055421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 123000341055421 its reverse (124550143000321), we get a palindrome (247550484055742).

The spelling of 123000341055421 in words is "one hundred twenty-three trillion, three hundred forty-one million, fifty-five thousand, four hundred twenty-one".