231613030 has 32 divisors (see below), whose sum is σ = 457355808. Its totient is φ = 83750400.

The previous prime is 231613027. The next prime is 231613033. The reversal of 231613030 is 30316132.

231613030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231613027) and next prime (231613033).

It is a junction number, because it is equal to n+sod(n) for n = 231612989 and 231613007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231613033) 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, 14094 + ... + 25726.

It is an arithmetic number, because the mean of its divisors is an integer number (14292369).

Almost surely, 2^231613030 is an apocalyptic number.

231613030 is a deficient number, since it is larger than the sum of its proper divisors (225742778).

231613030 is a wasteful number, since it uses less digits than its factorization.

231613030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11832.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 231613030 is about 15218.8379976922. The cubic root of 231613030 is about 614.1215386802.

Adding to 231613030 its reverse (30316132), we get a palindrome (261929162).

The spelling of 231613030 in words is "two hundred thirty-one million, six hundred thirteen thousand, thirty".