231403036 has 6 divisors (see below), whose sum is σ = 404955320. Its totient is φ = 115701516.

The previous prime is 231403021. The next prime is 231403037. The reversal of 231403036 is 630304132.

It is a junction number, because it is equal to n+sod(n) for n = 231402998 and 231403016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231403037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28925376 + ... + 28925383.

Almost surely, 2^231403036 is an apocalyptic number.

It is an amenable number.

231403036 is a deficient number, since it is larger than the sum of its proper divisors (173552284).

231403036 is a wasteful number, since it uses less digits than its factorization.

231403036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57850763 (or 57850761 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 231403036 is about 15211.9372862236. The cubic root of 231403036 is about 613.9358829871.

Adding to 231403036 its reverse (630304132), we get a palindrome (861707168).

The spelling of 231403036 in words is "two hundred thirty-one million, four hundred three thousand, thirty-six".