201131010 has 24 divisors (see below), whose sum is σ = 522940860. Its totient is φ = 53634912.

The previous prime is 201130999. The next prime is 201131053. The reversal of 201131010 is 10131102.

It can be written as a sum of positive squares in 2 ways, for example, as 198725409 + 2405601 = 14097^2 + 1551^2 .

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 = 201130983 and 201131001.

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, 1117305 + ... + 1117484.

Almost surely, 2^201131010 is an apocalyptic number.

201131010 is an abundant number, since it is smaller than the sum of its proper divisors (321809850).

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

201131010 is a wasteful number, since it uses less digits than its factorization.

201131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234802 (or 2234799 counting only the distinct ones).

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

The square root of 201131010 is about 14182.0664925814. The cubic root of 201131010 is about 585.9038406051.

Adding to 201131010 its reverse (10131102), we get a palindrome (211262112).

The spelling of 201131010 in words is "two hundred one million, one hundred thirty-one thousand, ten".