23345001103421 has 4 divisors (see below), whose sum is σ = 24150001141500. Its totient is φ = 22540001065344.

The previous prime is 23345001103387. The next prime is 23345001103427. The reversal of 23345001103421 is 12430110054332.

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 17308220899225 + 6036780204196 = 4160315^2 + 2456986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23345001103421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 805000038049 = 23345001103421 / (2 + 3 + 3 + 4 + 5 + 0 + 0 + 1 + 1 + 0 + 3 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23345001103427) 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, 402500018996 + ... + 402500019053.

It is an arithmetic number, because the mean of its divisors is an integer number (6037500285375).

Almost surely, 2^{23345001103421} is an apocalyptic number.

It is an amenable number.

23345001103421 is a deficient number, since it is larger than the sum of its proper divisors (805000038079).

23345001103421 is an equidigital number, since it uses as much as digits as its factorization.

23345001103421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805000038078.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 23345001103421 its reverse (12430110054332), we get a palindrome (35775111157753).

The spelling of 23345001103421 in words is "twenty-three trillion, three hundred forty-five billion, one million, one hundred three thousand, four hundred twenty-one".