23420517236 has 24 divisors (see below), whose sum is σ = 42391265280. Its totient is φ = 11310213600.

The previous prime is 23420517227. The next prime is 23420517251. The reversal of 23420517236 is 63271502432.

It is a junction number, because it is equal to n+sod(n) for n = 23420517196 and 23420517205.

It is a congruent number.

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, 122420 + ... + 248651.

It is an arithmetic number, because the mean of its divisors is an integer number (1766302720).

Almost surely, 2^23420517236 is an apocalyptic number.

It is an amenable number.

23420517236 is a deficient number, since it is larger than the sum of its proper divisors (18970748044).

23420517236 is a wasteful number, since it uses less digits than its factorization.

23420517236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371615 (or 371613 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 23420517236 in words is "twenty-three billion, four hundred twenty million, five hundred seventeen thousand, two hundred thirty-six".