231883923601918 has 8 divisors (see below), whose sum is σ = 397515297603312. Its totient is φ = 99378824400816.

The previous prime is 231883923601903. The next prime is 231883923601931. The reversal of 231883923601918 is 819106329388132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231883923601918.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8281568700055 + ... + 8281568700082.

It is an arithmetic number, because the mean of its divisors is an integer number (49689412200414).

Almost surely, 2^{231883923601918} is an apocalyptic number.

231883923601918 is a deficient number, since it is larger than the sum of its proper divisors (165631374001394).

231883923601918 is a wasteful number, since it uses less digits than its factorization.

231883923601918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16563137400146.

The product of its (nonzero) digits is 26873856, while the sum is 64.

The spelling of 231883923601918 in words is "two hundred thirty-one trillion, eight hundred eighty-three billion, nine hundred twenty-three million, six hundred one thousand, nine hundred eighteen".