20010231200 has 72 divisors (see below), whose sum is σ = 49889431872. Its totient is φ = 7833777920.

The previous prime is 20010231161. The next prime is 20010231211. The reversal of 20010231200 is 213201002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228494 + ... + 303693.

It is an arithmetic number, because the mean of its divisors is an integer number (692908776).

Almost surely, 2^20010231200 is an apocalyptic number.

20010231200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010231200 is an abundant number, since it is smaller than the sum of its proper divisors (29879200672).

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

20010231200 is a wasteful number, since it uses less digits than its factorization.

20010231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532254 (or 532241 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20010231200 its reverse (213201002), we get a palindrome (20223432202).

The spelling of 20010231200 in words is "twenty billion, ten million, two hundred thirty-one thousand, two hundred".