21031202033000 has 32 divisors (see below), whose sum is σ = 49213012759560. Its totient is φ = 8412480812800.

The previous prime is 21031202032969. The next prime is 21031202033029. The reversal of 21031202033000 is 33020213012.

It can be written as a sum of positive squares in 4 ways, for example, as 11166464323876 + 9864737709124 = 3341626^2 + 3140818^2 .

It is a super-2 number, since 2×21031202033000² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21031202033000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10515600017 + ... + 10515602016.

Almost surely, 2^{21031202033000} is an apocalyptic number.

21031202033000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21031202033000 is an abundant number, since it is smaller than the sum of its proper divisors (28181810726560).

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

21031202033000 is a wasteful number, since it uses less digits than its factorization.

21031202033000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21031202054 (or 21031202040 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21031202033000 its reverse (33020213012), we get a palindrome (21064222246012).

The spelling of 21031202033000 in words is "twenty-one trillion, thirty-one billion, two hundred two million, thirty-three thousand".