1012919013 has 24 divisors (see below), whose sum is σ = 1597159200. Its totient is φ = 639735408.

The previous prime is 1012919009. The next prime is 1012919053. The reversal of 1012919013 is 3109192101.

It is not a de Polignac number, because 1012919013 - 2² = 1012919009 is a prime.

It is a super-4 number, since 4×1012919013⁴ (a number of 37 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012919053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105078 + ... + 114311.

It is an arithmetic number, because the mean of its divisors is an integer number (66548300).

Almost surely, 2^1012919013 is an apocalyptic number.

It is an amenable number.

1012919013 is a deficient number, since it is larger than the sum of its proper divisors (584240187).

1012919013 is an equidigital number, since it uses as much as digits as its factorization.

1012919013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219423 (or 219411 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 1012919013 is about 31826.3886264213. The cubic root of 1012919013 is about 1004.2879250854.

The spelling of 1012919013 in words is "one billion, twelve million, nine hundred nineteen thousand, thirteen".