201131204 has 6 divisors (see below), whose sum is σ = 351979614. Its totient is φ = 100565600.

The previous prime is 201131201. The next prime is 201131209. The reversal of 201131204 is 402131102.

201131204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 108201604 + 92929600 = 10402^2 + 9640^2 .

It is a super-2 number, since 2×201131204² = 80907522444979232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201131201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25141397 + ... + 25141404.

It is an arithmetic number, because the mean of its divisors is an integer number (58663269).

Almost surely, 2^201131204 is an apocalyptic number.

It is an amenable number.

201131204 is a deficient number, since it is larger than the sum of its proper divisors (150848410).

201131204 is a wasteful number, since it uses less digits than its factorization.

201131204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50282805 (or 50282803 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 201131204 is about 14182.0733322036. The cubic root of 201131204 is about 585.9040289820.

Adding to 201131204 its reverse (402131102), we get a palindrome (603262306).

The spelling of 201131204 in words is "two hundred one million, one hundred thirty-one thousand, two hundred four".