123352234522421 has 2 divisors, whose sum is σ = 123352234522422. Its totient is φ = 123352234522420.

The previous prime is 123352234522393. The next prime is 123352234522487. The reversal of 123352234522421 is 124225432253321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63897417139396 + 59454817383025 = 7993586^2 + 7710695^2 .

It is a cyclic number.

It is not a de Polignac number, because 123352234522421 - 2³⁰ = 123351160780597 is a prime.

It is a super-2 number, since 2×123352234522421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123352234522921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61676117261210 + 61676117261211.

It is an arithmetic number, because the mean of its divisors is an integer number (61676117261211).

Almost surely, 2^{123352234522421} is an apocalyptic number.

It is an amenable number.

123352234522421 is a deficient number, since it is larger than the sum of its proper divisors (1).

123352234522421 is an equidigital number, since it uses as much as digits as its factorization.

123352234522421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 41.

Adding to 123352234522421 its reverse (124225432253321), we get a palindrome (247577666775742).

The spelling of 123352234522421 in words is "one hundred twenty-three trillion, three hundred fifty-two billion, two hundred thirty-four million, five hundred twenty-two thousand, four hundred twenty-one".