23135332401021 has 8 divisors (see below), whose sum is σ = 30847136320000. Its totient is φ = 15423541708032.

The previous prime is 23135332401001. The next prime is 23135332401029. The reversal of 23135332401021 is 12010423353132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23135332401021 - 2⁷ = 23135332400893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23135332401021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135332401029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1984605 + ... + 7085853.

It is an arithmetic number, because the mean of its divisors is an integer number (3855892040000).

Almost surely, 2^{23135332401021} is an apocalyptic number.

It is an amenable number.

23135332401021 is a deficient number, since it is larger than the sum of its proper divisors (7711803918979).

23135332401021 is a wasteful number, since it uses less digits than its factorization.

23135332401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6612995.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 23135332401021 its reverse (12010423353132), we get a palindrome (35145755754153).

The spelling of 23135332401021 in words is "twenty-three trillion, one hundred thirty-five billion, three hundred thirty-two million, four hundred one thousand, twenty-one".