231115413 has 8 divisors (see below), whose sum is σ = 318780000. Its totient is φ = 148763888.

The previous prime is 231115393. The next prime is 231115421. The reversal of 231115413 is 314511132.

231115413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231115413 - 2⁹ = 231114901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231115413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231115463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328163 + ... + 1328336.

It is an arithmetic number, because the mean of its divisors is an integer number (39847500).

Almost surely, 2^231115413 is an apocalyptic number.

It is an amenable number.

231115413 is a deficient number, since it is larger than the sum of its proper divisors (87664587).

231115413 is a wasteful number, since it uses less digits than its factorization.

231115413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656531.

The product of its digits is 360, while the sum is 21.

The square root of 231115413 is about 15202.4804883940. The cubic root of 231115413 is about 613.6814131306.

Adding to 231115413 its reverse (314511132), we get a palindrome (545626545).

The spelling of 231115413 in words is "two hundred thirty-one million, one hundred fifteen thousand, four hundred thirteen".