22513520343 has 4 divisors (see below), whose sum is σ = 30018027128. Its totient is φ = 15009013560.

The previous prime is 22513520329. The next prime is 22513520347. The reversal of 22513520343 is 34302531522.

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

It is not a de Polignac number, because 22513520343 - 2¹² = 22513516247 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 22513520343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513520347) 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, 3752253388 + ... + 3752253393.

It is an arithmetic number, because the mean of its divisors is an integer number (7504506782).

Almost surely, 2^22513520343 is an apocalyptic number.

22513520343 is a deficient number, since it is larger than the sum of its proper divisors (7504506785).

22513520343 is an equidigital number, since it uses as much as digits as its factorization.

22513520343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7504506784.

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 22513520343 in words is "twenty-two billion, five hundred thirteen million, five hundred twenty thousand, three hundred forty-three".