20020023312000 has 128 divisors (see below), whose sum is σ = 66366377438400. Its totient is φ = 5338672870400.

The previous prime is 20020023311999. The next prime is 20020023312031. The reversal of 20020023312000 is 21332002002.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 208493910 + ... + 208589909.

Almost surely, 2^{20020023312000} is an apocalyptic number.

20020023312000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020023312000 is an abundant number, since it is smaller than the sum of its proper divisors (46346354126400).

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

20020023312000 is an equidigital number, since it uses as much as digits as its factorization.

20020023312000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417083851 (or 417083829 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20020023312000 its reverse (21332002002), we get a palindrome (20041355314002).

The spelling of 20020023312000 in words is "twenty trillion, twenty billion, twenty-three million, three hundred twelve thousand".