32032021391 has 2 divisors, whose sum is σ = 32032021392. Its totient is φ = 32032021390.

The previous prime is 32032021379. The next prime is 32032021393. The reversal of 32032021391 is 19312023023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32032021391 - 2⁶ = 32032021327 is a prime.

Together with 32032021393, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32032021391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32032021393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16016010695 + 16016010696.

It is an arithmetic number, because the mean of its divisors is an integer number (16016010696).

Almost surely, 2^32032021391 is an apocalyptic number.

32032021391 is a deficient number, since it is larger than the sum of its proper divisors (1).

32032021391 is an equidigital number, since it uses as much as digits as its factorization.

32032021391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 32032021391 in words is "thirty-two billion, thirty-two million, twenty-one thousand, three hundred ninety-one".