200131231000 has 32 divisors (see below), whose sum is σ = 468307082880. Its totient is φ = 80052492000.

The previous prime is 200131230973. The next prime is 200131231021. The reversal of 200131231000 is 132131002.

It is a super-2 number, since 2×200131231000² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 100064616 + ... + 100066615.

It is an arithmetic number, because the mean of its divisors is an integer number (14634596340).

Almost surely, 2^200131231000 is an apocalyptic number.

200131231000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200131231000 is an abundant number, since it is smaller than the sum of its proper divisors (268175851880).

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

200131231000 is a wasteful number, since it uses less digits than its factorization.

200131231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200131252 (or 200131238 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 200131231000 its reverse (132131002), we get a palindrome (200263362002).

The spelling of 200131231000 in words is "two hundred billion, one hundred thirty-one million, two hundred thirty-one thousand".