1012340213 has 4 divisors (see below), whose sum is σ = 1014943020. Its totient is φ = 1009737408.

The previous prime is 1012340177. The next prime is 1012340233. The reversal of 1012340213 is 3120432101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3120432101 = 701 ⋅4451401.

It can be written as a sum of positive squares in 2 ways, for example, as 425101924 + 587238289 = 20618^2 + 24233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012340213 - 2¹⁸ = 1012078069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012340191 and 1012340200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012340233) 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, 1300820 + ... + 1301597.

It is an arithmetic number, because the mean of its divisors is an integer number (253735755).

Almost surely, 2^1012340213 is an apocalyptic number.

It is an amenable number.

1012340213 is a deficient number, since it is larger than the sum of its proper divisors (2602807).

1012340213 is an equidigital number, since it uses as much as digits as its factorization.

1012340213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602806.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1012340213 is about 31817.2942438542. The cubic root of 1012340213 is about 1004.0965992910.

Adding to 1012340213 its reverse (3120432101), we get a palindrome (4132772314).

The spelling of 1012340213 in words is "one billion, twelve million, three hundred forty thousand, two hundred thirteen".