231115412 has 12 divisors (see below), whose sum is σ = 441220416. Its totient is φ = 105052440.

The previous prime is 231115393. The next prime is 231115421. The reversal of 231115412 is 214511132.

It is a super-3 number, since 3×231115412³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2626268 + ... + 2626355.

It is an arithmetic number, because the mean of its divisors is an integer number (36768368).

Almost surely, 2^231115412 is an apocalyptic number.

231115412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231115412 is a deficient number, since it is larger than the sum of its proper divisors (210105004).

231115412 is a wasteful number, since it uses less digits than its factorization.

231115412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252638 (or 5252636 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 231115412 is about 15202.4804555046. The cubic root of 231115412 is about 613.6814122455.

Adding to 231115412 its reverse (214511132), we get a palindrome (445626544).

The spelling of 231115412 in words is "two hundred thirty-one million, one hundred fifteen thousand, four hundred twelve".