231432367906 has 16 divisors (see below), whose sum is σ = 352337832000. Its totient is φ = 113994414288.

The previous prime is 231432367889. The next prime is 231432367921. The reversal of 231432367906 is 609763234132.

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, 1939446 + ... + 2055313.

It is an arithmetic number, because the mean of its divisors is an integer number (22021114500).

Almost surely, 2^231432367906 is an apocalyptic number.

231432367906 is a deficient number, since it is larger than the sum of its proper divisors (120905464094).

231432367906 is a wasteful number, since it uses less digits than its factorization.

231432367906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995193.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 231432367906 in words is "two hundred thirty-one billion, four hundred thirty-two million, three hundred sixty-seven thousand, nine hundred six".