231513283 has 2 divisors, whose sum is σ = 231513284. Its totient is φ = 231513282.

The previous prime is 231513221. The next prime is 231513307. The reversal of 231513283 is 382315132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231513283 - 2¹³ = 231505091 is a prime.

It is not a weakly prime, because it can be changed into another prime (231516283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115756641 + 115756642.

It is an arithmetic number, because the mean of its divisors is an integer number (115756642).

Almost surely, 2^231513283 is an apocalyptic number.

231513283 is a deficient number, since it is larger than the sum of its proper divisors (1).

231513283 is an equidigital number, since it uses as much as digits as its factorization.

231513283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 231513283 is about 15215.5605549056. The cubic root of 231513283 is about 614.0333663569.

The spelling of 231513283 in words is "two hundred thirty-one million, five hundred thirteen thousand, two hundred eighty-three".