1010312309 has 2 divisors, whose sum is σ = 1010312310. Its totient is φ = 1010312308.

The previous prime is 1010312291. The next prime is 1010312357. The reversal of 1010312309 is 9032130101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872907025 + 137405284 = 29545^2 + 11722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010312309 - 2¹² = 1010308213 is a prime.

It is a super-2 number, since 2×1010312309² = 2041461923433822962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010312609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505156154 + 505156155.

It is an arithmetic number, because the mean of its divisors is an integer number (505156155).

Almost surely, 2^1010312309 is an apocalyptic number.

It is an amenable number.

1010312309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010312309 is an equidigital number, since it uses as much as digits as its factorization.

1010312309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1010312309 is about 31785.4103166846. The cubic root of 1010312309 is about 1003.4256875973.

The spelling of 1010312309 in words is "one billion, ten million, three hundred twelve thousand, three hundred nine".