231061263 has 16 divisors (see below), whose sum is σ = 335023200. Its totient is φ = 141060096.

The previous prime is 231061249. The next prime is 231061277. The reversal of 231061263 is 362160132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (231061249) and next prime (231061277).

It is not a de Polignac number, because 231061263 - 2⁸ = 231061007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231061213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59338 + ... + 63111.

It is an arithmetic number, because the mean of its divisors is an integer number (20938950).

Almost surely, 2^231061263 is an apocalyptic number.

231061263 is a deficient number, since it is larger than the sum of its proper divisors (103961937).

231061263 is a wasteful number, since it uses less digits than its factorization.

231061263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122506.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 231061263 is about 15200.6994246975. The cubic root of 231061263 is about 613.6334811706.

The spelling of 231061263 in words is "two hundred thirty-one million, sixty-one thousand, two hundred sixty-three".