23055545151421 has 4 divisors (see below), whose sum is σ = 23446317103200. Its totient is φ = 22664773199644.

The previous prime is 23055545151403. The next prime is 23055545151557. The reversal of 23055545151421 is 12415154555032.

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 a de Polignac number, because none of the positive numbers 2^k-23055545151421 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 (23055545151721) 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, 195385975801 + ... + 195385975918.

It is an arithmetic number, because the mean of its divisors is an integer number (5861579275800).

Almost surely, 2^{23055545151421} is an apocalyptic number.

It is an amenable number.

23055545151421 is a deficient number, since it is larger than the sum of its proper divisors (390771951779).

23055545151421 is an equidigital number, since it uses as much as digits as its factorization.

23055545151421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390771951778.

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 23055545151421 in words is "twenty-three trillion, fifty-five billion, five hundred forty-five million, one hundred fifty-one thousand, four hundred twenty-one".