20013023412 has 36 divisors (see below), whose sum is σ = 51197983200. Its totient is φ = 6590633232.

The previous prime is 20013023363. The next prime is 20013023417. The reversal of 20013023412 is 21432031002.

20013023412 is a `hidden beast` number, since 20 + 0 + 1 + 302 + 341 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20013023412² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013023417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3345912 + ... + 3351887.

It is an arithmetic number, because the mean of its divisors is an integer number (1422166200).

Almost surely, 2^20013023412 is an apocalyptic number.

It is an amenable number.

20013023412 is an abundant number, since it is smaller than the sum of its proper divisors (31184959788).

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

20013023412 is a wasteful number, since it uses less digits than its factorization.

20013023412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6697892 (or 6697887 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20013023412 its reverse (21432031002), we get a palindrome (41445054414).

The spelling of 20013023412 in words is "twenty billion, thirteen million, twenty-three thousand, four hundred twelve".