32120421999979 has 2 divisors, whose sum is σ = 32120421999980. Its totient is φ = 32120421999978.

The previous prime is 32120421999889. The next prime is 32120422000001. The reversal of 32120421999979 is 97999912402123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32120421999979 - 2⁷ = 32120421999851 is a prime.

It is not a weakly prime, because it can be changed into another prime (32120421999779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060210999989 + 16060210999990.

It is an arithmetic number, because the mean of its divisors is an integer number (16060210999990).

Almost surely, 2^{32120421999979} is an apocalyptic number.

32120421999979 is a deficient number, since it is larger than the sum of its proper divisors (1).

32120421999979 is an equidigital number, since it uses as much as digits as its factorization.

32120421999979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39680928, while the sum is 67.

The spelling of 32120421999979 in words is "thirty-two trillion, one hundred twenty billion, four hundred twenty-one million, nine hundred ninety-nine thousand, nine hundred seventy-nine".