20023413312 has 336 divisors, whose sum is σ = 64629792000. Its totient is φ = 5447909376.

The previous prime is 20023413259. The next prime is 20023413343. The reversal of 20023413312 is 21331432002.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21553264 + ... + 21554192.

Almost surely, 2^20023413312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023413312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32314896000).

20023413312 is an abundant number, since it is smaller than the sum of its proper divisors (44606378688).

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

20023413312 is a wasteful number, since it uses less digits than its factorization.

20023413312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20023413312 its reverse (21331432002), we get a palindrome (41354845314).

The spelling of 20023413312 in words is "twenty billion, twenty-three million, four hundred thirteen thousand, three hundred twelve".