23205133434 has 64 divisors (see below), whose sum is σ = 53475609600. Its totient is φ = 6575724288.

The previous prime is 23205133423. The next prime is 23205133459. The reversal of 23205133434 is 43433150232.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10898482 + ... + 10900610.

It is an arithmetic number, because the mean of its divisors is an integer number (835556400).

Almost surely, 2^23205133434 is an apocalyptic number.

23205133434 is an abundant number, since it is smaller than the sum of its proper divisors (30270476166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23205133434 is a wasteful number, since it uses less digits than its factorization.

23205133434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 23205133434 its reverse (43433150232), we get a palindrome (66638283666).

The spelling of 23205133434 in words is "twenty-three billion, two hundred five million, one hundred thirty-three thousand, four hundred thirty-four".