312131241 has 6 divisors (see below), whose sum is σ = 450856250. Its totient is φ = 208087488.

The previous prime is 312131233. The next prime is 312131251. The reversal of 312131241 is 142131213.

312131241 is a `hidden beast` number, since 312 + 1 + 312 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 309584025 + 2547216 = 17595^2 + 1596^2 .

It is not a de Polignac number, because 312131241 - 2³ = 312131233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312131251) 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, 17340616 + ... + 17340633.

Almost surely, 2^312131241 is an apocalyptic number.

It is an amenable number.

312131241 is a deficient number, since it is larger than the sum of its proper divisors (138725009).

312131241 is a wasteful number, since it uses less digits than its factorization.

312131241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34681255 (or 34681252 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 312131241 is about 17667.2363713174. The cubic root of 312131241 is about 678.3373748402.

Adding to 312131241 its reverse (142131213), we get a palindrome (454262454).

The spelling of 312131241 in words is "three hundred twelve million, one hundred thirty-one thousand, two hundred forty-one".