23400134306643 has 4 divisors (see below), whose sum is σ = 31200179075528. Its totient is φ = 15600089537760.

The previous prime is 23400134306639. The next prime is 23400134306651. The reversal of 23400134306643 is 34660343100432.

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

It is not a de Polignac number, because 23400134306643 - 2² = 23400134306639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23400134306683) 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, 3900022384438 + ... + 3900022384443.

It is an arithmetic number, because the mean of its divisors is an integer number (7800044768882).

Almost surely, 2^{23400134306643} is an apocalyptic number.

23400134306643 is a deficient number, since it is larger than the sum of its proper divisors (7800044768885).

23400134306643 is an equidigital number, since it uses as much as digits as its factorization.

23400134306643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800044768884.

The product of its (nonzero) digits is 373248, while the sum is 39.

The spelling of 23400134306643 in words is "twenty-three trillion, four hundred billion, one hundred thirty-four million, three hundred six thousand, six hundred forty-three".