1309130898461 has 4 divisors (see below), whose sum is σ = 1309133622300. Its totient is φ = 1309128174624.

The previous prime is 1309130898431. The next prime is 1309130898499. The reversal of 1309130898461 is 1648980319031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 959606364025 + 349524534436 = 979595^2 + 591206^2 .

It is a cyclic number.

It is not a de Polignac number, because 1309130898461 - 2¹⁴ = 1309130882077 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 (1309130898431) 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, 427106 + ... + 1673523.

It is an arithmetic number, because the mean of its divisors is an integer number (327283405575).

Almost surely, 2^{1309130898461} is an apocalyptic number.

It is an amenable number.

1309130898461 is a deficient number, since it is larger than the sum of its proper divisors (2723839).

1309130898461 is an equidigital number, since it uses as much as digits as its factorization.

1309130898461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723838.

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 1309130898461 in words is "one trillion, three hundred nine billion, one hundred thirty million, eight hundred ninety-eight thousand, four hundred sixty-one".