23132352331421 has 4 divisors (see below), whose sum is σ = 23132745203100. Its totient is φ = 23131959459744.

The previous prime is 23132352331349. The next prime is 23132352331423. The reversal of 23132352331421 is 12413325323132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13334262895321 + 9798089436100 = 3651611^2 + 3130190^2 .

It is a cyclic number.

It is not a de Polignac number, because 23132352331421 - 2³⁴ = 23115172462237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132352331423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196347506 + ... + 196465283.

It is an arithmetic number, because the mean of its divisors is an integer number (5783186300775).

Almost surely, 2^{23132352331421} is an apocalyptic number.

It is an amenable number.

23132352331421 is a deficient number, since it is larger than the sum of its proper divisors (392871679).

23132352331421 is an equidigital number, since it uses as much as digits as its factorization.

23132352331421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392871678.

The product of its digits is 77760, while the sum is 35.

Adding to 23132352331421 its reverse (12413325323132), we get a palindrome (35545677654553).

The spelling of 23132352331421 in words is "twenty-three trillion, one hundred thirty-two billion, three hundred fifty-two million, three hundred thirty-one thousand, four hundred twenty-one".