231101983 has 6 divisors (see below), whose sum is σ = 268832976. Its totient is φ = 198087372.

The previous prime is 231101971. The next prime is 231101989. The reversal of 231101983 is 389101132.

It is not a de Polignac number, because 231101983 - 2⁵ = 231101951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231101989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2358135 + ... + 2358232.

It is an arithmetic number, because the mean of its divisors is an integer number (44805496).

Almost surely, 2^231101983 is an apocalyptic number.

231101983 is a deficient number, since it is larger than the sum of its proper divisors (37730993).

231101983 is an equidigital number, since it uses as much as digits as its factorization.

231101983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716381 (or 4716374 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 231101983 is about 15202.0387777429. The cubic root of 231101983 is about 613.6695259946.

The spelling of 231101983 in words is "two hundred thirty-one million, one hundred one thousand, nine hundred eighty-three".