80012421019 has 2 divisors, whose sum is σ = 80012421020. Its totient is φ = 80012421018.

The previous prime is 80012420993. The next prime is 80012421031. The reversal of 80012421019 is 91012421008.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80012421019 - 2⁵ = 80012420987 is a prime.

It is a super-2 number, since 2×80012421019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80012491019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40006210509 + 40006210510.

It is an arithmetic number, because the mean of its divisors is an integer number (40006210510).

Almost surely, 2^80012421019 is an apocalyptic number.

80012421019 is a deficient number, since it is larger than the sum of its proper divisors (1).

80012421019 is an equidigital number, since it uses as much as digits as its factorization.

80012421019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 80012421019 in words is "eighty billion, twelve million, four hundred twenty-one thousand, nineteen".