32002099991 has 2 divisors, whose sum is σ = 32002099992. Its totient is φ = 32002099990.

The previous prime is 32002099979. The next prime is 32002100023. The reversal of 32002099991 is 19999020023.

It is a weak prime.

It is an emirp because it is prime and its reverse (19999020023) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32002099991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32002029991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16001049995 + 16001049996.

It is an arithmetic number, because the mean of its divisors is an integer number (16001049996).

Almost surely, 2^32002099991 is an apocalyptic number.

32002099991 is a deficient number, since it is larger than the sum of its proper divisors (1).

32002099991 is an equidigital number, since it uses as much as digits as its factorization.

32002099991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 32002099991 in words is "thirty-two billion, two million, ninety-nine thousand, nine hundred ninety-one".