1012278001 has 12 divisors (see below), whose sum is σ = 1209380032. Its totient is φ = 829939176.

The previous prime is 1012277993. The next prime is 1012278017. The reversal of 1012278001 is 1008722101.

1012278001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1012278001 - 2³ = 1012277993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012278041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132981 + ... + 140386.

Almost surely, 2^1012278001 is an apocalyptic number.

It is an amenable number.

1012278001 is a deficient number, since it is larger than the sum of its proper divisors (197102031).

1012278001 is an equidigital number, since it uses as much as digits as its factorization.

1012278001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273420 (or 273397 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 1012278001 is about 31816.3165844194. The cubic root of 1012278001 is about 1004.0760304031.

The spelling of 1012278001 in words is "one billion, twelve million, two hundred seventy-eight thousand, one".