32012111491 has 2 divisors, whose sum is σ = 32012111492. Its totient is φ = 32012111490.

The previous prime is 32012111357. The next prime is 32012111531. The reversal of 32012111491 is 19411121023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32012111491 - 2⁹ = 32012110979 is a prime.

It is a super-2 number, since 2×32012111491² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32012151491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16006055745 + 16006055746.

It is an arithmetic number, because the mean of its divisors is an integer number (16006055746).

Almost surely, 2^32012111491 is an apocalyptic number.

32012111491 is a deficient number, since it is larger than the sum of its proper divisors (1).

32012111491 is an equidigital number, since it uses as much as digits as its factorization.

32012111491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 32012111491 in words is "thirty-two billion, twelve million, one hundred eleven thousand, four hundred ninety-one".