20001033023100 has 144 divisors (see below), whose sum is σ = 63386641432800. Its totient is φ = 4846768209920.

The previous prime is 20001033023021. The next prime is 20001033023131. The reversal of 20001033023100 is 132033010002.

It is a super-2 number, since 2×20001033023100² (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 a self number, because there is not a number n which added to its sum of digits gives 20001033023100.

It is a congruent number.

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, 67468845 + ... + 67764644.

It is an arithmetic number, because the mean of its divisors is an integer number (440185009950).

Almost surely, 2^{20001033023100} is an apocalyptic number.

20001033023100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001033023100 is an abundant number, since it is smaller than the sum of its proper divisors (43385608409700).

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

20001033023100 is a wasteful number, since it uses less digits than its factorization.

20001033023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135233552 (or 135233545 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20001033023100 its reverse (132033010002), we get a palindrome (20133066033102).

The spelling of 20001033023100 in words is "twenty trillion, one billion, thirty-three million, twenty-three thousand, one hundred".