32013229691 has 2 divisors, whose sum is σ = 32013229692. Its totient is φ = 32013229690.

The previous prime is 32013229679. The next prime is 32013229693. The reversal of 32013229691 is 19692231023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32013229691 is a prime.

It is a Sophie Germain prime.

Together with 32013229693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32013229693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16006614845 + 16006614846.

It is an arithmetic number, because the mean of its divisors is an integer number (16006614846).

Almost surely, 2^32013229691 is an apocalyptic number.

32013229691 is a deficient number, since it is larger than the sum of its proper divisors (1).

32013229691 is an equidigital number, since it uses as much as digits as its factorization.

32013229691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 32013229691 in words is "thirty-two billion, thirteen million, two hundred twenty-nine thousand, six hundred ninety-one".