23002221321137 has 4 divisors (see below), whose sum is σ = 23038106222436. Its totient is φ = 22966336419840.

The previous prime is 23002221321119. The next prime is 23002221321139. The reversal of 23002221321137 is 73112312220032.

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 20062148688241 + 2940072632896 = 4479079^2 + 1714664^2 .

It is a cyclic number.

It is not a de Polignac number, because 23002221321137 - 2⁶ = 23002221321073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23002221321139) 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, 17942449688 + ... + 17942450969.

It is an arithmetic number, because the mean of its divisors is an integer number (5759526555609).

Almost surely, 2^{23002221321137} is an apocalyptic number.

It is an amenable number.

23002221321137 is a deficient number, since it is larger than the sum of its proper divisors (35884901299).

23002221321137 is an equidigital number, since it uses as much as digits as its factorization.

23002221321137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35884901298.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 23002221321137 its reverse (73112312220032), we get a palindrome (96114533541169).

The spelling of 23002221321137 in words is "twenty-three trillion, two billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred thirty-seven".