23132304120421 has 2 divisors, whose sum is σ = 23132304120422. Its totient is φ = 23132304120420.

The previous prime is 23132304120397. The next prime is 23132304120433. The reversal of 23132304120421 is 12402140323132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17805952484100 + 5326351636321 = 4219710^2 + 2307889^2 .

It is a cyclic number.

It is not a de Polignac number, because 23132304120421 - 2⁹ = 23132304119909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23132304120421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23132304127421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11566152060210 + 11566152060211.

It is an arithmetic number, because the mean of its divisors is an integer number (11566152060211).

Almost surely, 2^{23132304120421} is an apocalyptic number.

It is an amenable number.

23132304120421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23132304120421 is an equidigital number, since it uses as much as digits as its factorization.

23132304120421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 23132304120421 its reverse (12402140323132), we get a palindrome (35534444443553).

The spelling of 23132304120421 in words is "twenty-three trillion, one hundred thirty-two billion, three hundred four million, one hundred twenty thousand, four hundred twenty-one".