231012434 has 16 divisors (see below), whose sum is σ = 370033920. Its totient is φ = 107924880.

The previous prime is 231012427. The next prime is 231012479. The reversal of 231012434 is 434210132.

231012434 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62444 + ... + 66039.

It is an arithmetic number, because the mean of its divisors is an integer number (23127120).

Almost surely, 2^231012434 is an apocalyptic number.

231012434 is a deficient number, since it is larger than the sum of its proper divisors (139021486).

231012434 is a wasteful number, since it uses less digits than its factorization.

231012434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128545.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 231012434 is about 15199.0931966351. The cubic root of 231012434 is about 613.5902527792.

Adding to 231012434 its reverse (434210132), we get a palindrome (665222566).

The spelling of 231012434 in words is "two hundred thirty-one million, twelve thousand, four hundred thirty-four".