231403029 has 16 divisors (see below), whose sum is σ = 362478144. Its totient is φ = 129456000.

The previous prime is 231403021. The next prime is 231403037. The reversal of 231403029 is 920304132.

It is an interprime number because it is at equal distance from previous prime (231403021) and next prime (231403037).

It is not a de Polignac number, because 231403029 - 2³ = 231403021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231403021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269272 + ... + 270129.

It is an arithmetic number, because the mean of its divisors is an integer number (22654884).

Almost surely, 2^231403029 is an apocalyptic number.

It is an amenable number.

231403029 is a deficient number, since it is larger than the sum of its proper divisors (131075115).

231403029 is a wasteful number, since it uses less digits than its factorization.

231403029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539428.

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

The square root of 231403029 is about 15211.9370561411. The cubic root of 231403029 is about 613.9358767965.

The spelling of 231403029 in words is "two hundred thirty-one million, four hundred three thousand, twenty-nine".