23443261351 has 4 divisors (see below), whose sum is σ = 23446147032. Its totient is φ = 23440375672.

The previous prime is 23443261291. The next prime is 23443261363. The reversal of 23443261351 is 15316234432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23443261351 - 2²¹ = 23441164199 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 (23443241351) 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, 1430620 + ... + 1446913.

It is an arithmetic number, because the mean of its divisors is an integer number (5861536758).

Almost surely, 2^23443261351 is an apocalyptic number.

23443261351 is a deficient number, since it is larger than the sum of its proper divisors (2885681).

23443261351 is an equidigital number, since it uses as much as digits as its factorization.

23443261351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885680.

The product of its digits is 51840, while the sum is 34.

Adding to 23443261351 its reverse (15316234432), we get a palindrome (38759495783).

The spelling of 23443261351 in words is "twenty-three billion, four hundred forty-three million, two hundred sixty-one thousand, three hundred fifty-one".