231112477 has 2 divisors, whose sum is σ = 231112478. Its totient is φ = 231112476.

The previous prime is 231112429. The next prime is 231112481. The reversal of 231112477 is 774211132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167288356 + 63824121 = 12934^2 + 7989^2 .

It is a cyclic number.

It is not a de Polignac number, because 231112477 - 2²³ = 222723869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231112417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115556238 + 115556239.

It is an arithmetic number, because the mean of its divisors is an integer number (115556239).

Almost surely, 2^231112477 is an apocalyptic number.

It is an amenable number.

231112477 is a deficient number, since it is larger than the sum of its proper divisors (1).

231112477 is an equidigital number, since it uses as much as digits as its factorization.

231112477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 28.

The square root of 231112477 is about 15202.3839248981. The cubic root of 231112477 is about 613.6788144632.

The spelling of 231112477 in words is "two hundred thirty-one million, one hundred twelve thousand, four hundred seventy-seven".