201131199 has 24 divisors (see below), whose sum is σ = 315124992. Its totient is φ = 123118080.

The previous prime is 201131197. The next prime is 201131201. The reversal of 201131199 is 991131102.

It is an interprime number because it is at equal distance from previous prime (201131197) and next prime (201131201).

It is not a de Polignac number, because 201131199 - 2¹ = 201131197 is a prime.

It is a super-2 number, since 2×201131199² = 80907518422355202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201131191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9759 + ... + 22304.

It is an arithmetic number, because the mean of its divisors is an integer number (13130208).

Almost surely, 2^201131199 is an apocalyptic number.

201131199 is a deficient number, since it is larger than the sum of its proper divisors (113993793).

201131199 is a wasteful number, since it uses less digits than its factorization.

201131199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32127 (or 32124 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 201131199 is about 14182.0731559247. The cubic root of 201131199 is about 585.9040241270.

It can be divided in two parts, 20113 and 1199, that added together give a palindrome (21312).

The spelling of 201131199 in words is "two hundred one million, one hundred thirty-one thousand, one hundred ninety-nine".