20012321013000 has 128 divisors (see below), whose sum is σ = 62668844259840. Its totient is φ = 5316926400000.

The previous prime is 20012321012989. The next prime is 20012321013017. The reversal of 20012321013000 is 31012321002.

It is a super-2 number, since 2×20012321013000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11494701 + ... + 13120700.

It is an arithmetic number, because the mean of its divisors is an integer number (489600345780).

Almost surely, 2^{20012321013000} is an apocalyptic number.

20012321013000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012321013000 is an abundant number, since it is smaller than the sum of its proper divisors (42656523246840).

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

20012321013000 is a wasteful number, since it uses less digits than its factorization.

20012321013000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24615696 (or 24615682 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20012321013000 its reverse (31012321002), we get a palindrome (20043333334002).

The spelling of 20012321013000 in words is "twenty trillion, twelve billion, three hundred twenty-one million, thirteen thousand".