1012120979 has 2 divisors, whose sum is σ = 1012120980. Its totient is φ = 1012120978.

The previous prime is 1012120973. The next prime is 1012121009. The reversal of 1012120979 is 9790212101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012120979 - 2¹² = 1012116883 is a prime.

It is a super-2 number, since 2×1012120979² = 2048777752263836882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1012120973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506060489 + 506060490.

It is an arithmetic number, because the mean of its divisors is an integer number (506060490).

Almost surely, 2^1012120979 is an apocalyptic number.

1012120979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012120979 is an equidigital number, since it uses as much as digits as its factorization.

1012120979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 1012120979 is about 31813.8488554906. The cubic root of 1012120979 is about 1004.0241111414.

The spelling of 1012120979 in words is "one billion, twelve million, one hundred twenty thousand, nine hundred seventy-nine".