1024312109 has 4 divisors (see below), whose sum is σ = 1026325020. Its totient is φ = 1022299200.

The previous prime is 1024312087. The next prime is 1024312151. The reversal of 1024312109 is 9012134201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9012134201 = 7 ⋅1287447743.

It can be written as a sum of positive squares in 2 ways, for example, as 814931209 + 209380900 = 28547^2 + 14470^2 .

It is a cyclic number.

It is not a de Polignac number, because 1024312109 - 2⁸ = 1024311853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024315109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005692 + ... + 1006709.

It is an arithmetic number, because the mean of its divisors is an integer number (256581255).

Almost surely, 2^1024312109 is an apocalyptic number.

It is an amenable number.

1024312109 is a deficient number, since it is larger than the sum of its proper divisors (2012911).

1024312109 is an equidigital number, since it uses as much as digits as its factorization.

1024312109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012910.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1024312109 is about 32004.8763315842. The cubic root of 1024312109 is about 1008.0392338623.

The spelling of 1024312109 in words is "one billion, twenty-four million, three hundred twelve thousand, one hundred nine".