23135621601 has 4 divisors (see below), whose sum is σ = 30847495472. Its totient is φ = 15423747732.

The previous prime is 23135621599. The next prime is 23135621603. The reversal of 23135621601 is 10612653132.

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 an interprime number because it is at equal distance from previous prime (23135621599) and next prime (23135621603).

It is not a de Polignac number, because 23135621601 - 2¹ = 23135621599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23135621603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3855936931 + ... + 3855936936.

It is an arithmetic number, because the mean of its divisors is an integer number (7711873868).

Almost surely, 2^23135621601 is an apocalyptic number.

It is an amenable number.

23135621601 is a deficient number, since it is larger than the sum of its proper divisors (7711873871).

23135621601 is an equidigital number, since it uses as much as digits as its factorization.

23135621601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711873870.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 23135621601 in words is "twenty-three billion, one hundred thirty-five million, six hundred twenty-one thousand, six hundred one".