231130377 has 24 divisors (see below), whose sum is σ = 346320000. Its totient is φ = 148363488.

The previous prime is 231130343. The next prime is 231130397. The reversal of 231130377 is 773031132.

It is a de Polignac number, because none of the positive numbers 2^k-231130377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231130377.

It is not an unprimeable number, because it can be changed into a prime (231130397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114624 + ... + 116622.

It is an arithmetic number, because the mean of its divisors is an integer number (14430000).

Almost surely, 2^231130377 is an apocalyptic number.

It is an amenable number.

231130377 is a deficient number, since it is larger than the sum of its proper divisors (115189623).

231130377 is a wasteful number, since it uses less digits than its factorization.

231130377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 231130377 is about 15202.9726369549. The cubic root of 231130377 is about 613.6946574954.

The spelling of 231130377 in words is "two hundred thirty-one million, one hundred thirty thousand, three hundred seventy-seven".