23420357522 has 16 divisors (see below), whose sum is σ = 37000556352. Its totient is φ = 11096355600.

The previous prime is 23420357491. The next prime is 23420357537. The reversal of 23420357522 is 22575302432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2374229 + ... + 2384072.

It is an arithmetic number, because the mean of its divisors is an integer number (2312534772).

Almost surely, 2^23420357522 is an apocalyptic number.

23420357522 is a deficient number, since it is larger than the sum of its proper divisors (13580198830).

23420357522 is a wasteful number, since it uses less digits than its factorization.

23420357522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758433.

The product of its (nonzero) digits is 100800, while the sum is 35.

Adding to 23420357522 its reverse (22575302432), we get a palindrome (45995659954).

The spelling of 23420357522 in words is "twenty-three billion, four hundred twenty million, three hundred fifty-seven thousand, five hundred twenty-two".