23905143361 has 4 divisors (see below), whose sum is σ = 26078338224. Its totient is φ = 21731948500.

The previous prime is 23905143349. The next prime is 23905143389. The reversal of 23905143361 is 16334150932.

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 a cyclic number.

It is not a de Polignac number, because 23905143361 - 2⁷ = 23905143233 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 23905143361.

It is not an unprimeable number, because it can be changed into a prime (23905143391) 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, 1086597415 + ... + 1086597436.

It is an arithmetic number, because the mean of its divisors is an integer number (6519584556).

Almost surely, 2^23905143361 is an apocalyptic number.

It is an amenable number.

23905143361 is a deficient number, since it is larger than the sum of its proper divisors (2173194863).

23905143361 is a wasteful number, since it uses less digits than its factorization.

23905143361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173194862.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 23905143361 in words is "twenty-three billion, nine hundred five million, one hundred forty-three thousand, three hundred sixty-one".