23134220331421 has 4 divisors (see below), whose sum is σ = 24351810875200. Its totient is φ = 21916629787644.

The previous prime is 23134220331389. The next prime is 23134220331427. The reversal of 23134220331421 is 12413302243132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23134220331421 - 2⁵ = 23134220331389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23134220331427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 608795271861 + ... + 608795271898.

It is an arithmetic number, because the mean of its divisors is an integer number (6087952718800).

Almost surely, 2^{23134220331421} is an apocalyptic number.

It is an amenable number.

23134220331421 is a deficient number, since it is larger than the sum of its proper divisors (1217590543779).

23134220331421 is a wasteful number, since it uses less digits than its factorization.

23134220331421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217590543778.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 23134220331421 its reverse (12413302243132), we get a palindrome (35547522574553).

The spelling of 23134220331421 in words is "twenty-three trillion, one hundred thirty-four billion, two hundred twenty million, three hundred thirty-one thousand, four hundred twenty-one".