123452334521 has 2 divisors, whose sum is σ = 123452334522. Its totient is φ = 123452334520.

The previous prime is 123452334503. The next prime is 123452334539. The reversal of 123452334521 is 125433254321.

It is a balanced prime because it is at equal distance from previous prime (123452334503) and next prime (123452334539).

It can be written as a sum of positive squares in only one way, i.e., 100527043600 + 22925290921 = 317060^2 + 151411^2 .

It is a cyclic number.

It is not a de Polignac number, because 123452334521 - 2¹⁴ = 123452318137 is a prime.

It is not a weakly prime, because it can be changed into another prime (123452337521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61726167260 + 61726167261.

It is an arithmetic number, because the mean of its divisors is an integer number (61726167261).

Almost surely, 2^123452334521 is an apocalyptic number.

It is an amenable number.

123452334521 is a deficient number, since it is larger than the sum of its proper divisors (1).

123452334521 is an equidigital number, since it uses as much as digits as its factorization.

123452334521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 35.

Adding to 123452334521 its reverse (125433254321), we get a palindrome (248885588842).

The spelling of 123452334521 in words is "one hundred twenty-three billion, four hundred fifty-two million, three hundred thirty-four thousand, five hundred twenty-one".