131100233 has 6 divisors (see below), whose sum is σ = 144102042. Its totient is φ = 119181920.

The previous prime is 131100223. The next prime is 131100251. The reversal of 131100233 is 332001131.

It can be written as a sum of positive squares in only one way, i.e., 129117769 + 1982464 = 11363^2 + 1408^2 .

It is not a de Polignac number, because 131100233 - 2⁶ = 131100169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131100223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 541616 + ... + 541857.

It is an arithmetic number, because the mean of its divisors is an integer number (24017007).

Almost surely, 2^131100233 is an apocalyptic number.

It is an amenable number.

131100233 is a deficient number, since it is larger than the sum of its proper divisors (13001809).

131100233 is a wasteful number, since it uses less digits than its factorization.

131100233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083495 (or 1083484 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131100233 is about 11449.9010039389. The cubic root of 131100233 is about 508.0048062558.

Adding to 131100233 its reverse (332001131), we get a palindrome (463101364).

The spelling of 131100233 in words is "one hundred thirty-one million, one hundred thousand, two hundred thirty-three".