31100099983 has 2 divisors, whose sum is σ = 31100099984. Its totient is φ = 31100099982.

The previous prime is 31100099981. The next prime is 31100100041. The reversal of 31100099983 is 38999000113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31100099983 - 2¹ = 31100099981 is a prime.

Together with 31100099981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31100099981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550049991 + 15550049992.

It is an arithmetic number, because the mean of its divisors is an integer number (15550049992).

Almost surely, 2^31100099983 is an apocalyptic number.

31100099983 is a deficient number, since it is larger than the sum of its proper divisors (1).

31100099983 is an equidigital number, since it uses as much as digits as its factorization.

31100099983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 31100099983 in words is "thirty-one billion, one hundred million, ninety-nine thousand, nine hundred eighty-three".