1312341461 has 2 divisors, whose sum is σ = 1312341462. Its totient is φ = 1312341460.

The previous prime is 1312341431. The next prime is 1312341487. The reversal of 1312341461 is 1641432131.

It is a happy number.

It is an a-pointer prime, because the next prime (1312341487) can be obtained adding 1312341461 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1191561361 + 120780100 = 34519^2 + 10990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312341461 - 2³⁰ = 238599637 is a prime.

It is a super-2 number, since 2×1312341461² = 3444480220519229042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312341461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312341431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656170730 + 656170731.

It is an arithmetic number, because the mean of its divisors is an integer number (656170731).

Almost surely, 2^1312341461 is an apocalyptic number.

It is an amenable number.

1312341461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312341461 is an equidigital number, since it uses as much as digits as its factorization.

1312341461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 1312341461 is about 36226.2537533209. The cubic root of 1312341461 is about 1094.8356990962.

Adding to 1312341461 its reverse (1641432131), we get a palindrome (2953773592).

The spelling of 1312341461 in words is "one billion, three hundred twelve million, three hundred forty-one thousand, four hundred sixty-one".