200131011 has 12 divisors (see below), whose sum is σ = 292562088. Its totient is φ = 131812704.

The previous prime is 200131003. The next prime is 200131031. The reversal of 200131011 is 110131002.

It is not a de Polignac number, because 200131011 - 2³ = 200131003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200130984 and 200131002.

It is not an unprimeable number, because it can be changed into a prime (200131031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133210 + ... + 134703.

It is an arithmetic number, because the mean of its divisors is an integer number (24380174).

Almost surely, 2^200131011 is an apocalyptic number.

200131011 is a deficient number, since it is larger than the sum of its proper divisors (92431077).

200131011 is a wasteful number, since it uses less digits than its factorization.

200131011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268002 (or 267999 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 200131011 is about 14146.7668037612. The cubic root of 200131011 is about 584.9312126001.

Adding to 200131011 its reverse (110131002), we get a palindrome (310262013).

Subtracting from 200131011 its reverse (110131002), we obtain a palindrome (90000009).

The spelling of 200131011 in words is "two hundred million, one hundred thirty-one thousand, eleven".