1292878045313 has 2 divisors, whose sum is σ = 1292878045314. Its totient is φ = 1292878045312.

The previous prime is 1292878045259. The next prime is 1292878045343. The reversal of 1292878045313 is 3135408782921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1281487392784 + 11390652529 = 1132028^2 + 106727^2 .

It is a cyclic number.

It is not a de Polignac number, because 1292878045313 - 2⁸ = 1292878045057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1292878045343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646439022656 + 646439022657.

It is an arithmetic number, because the mean of its divisors is an integer number (646439022657).

Almost surely, 2^{1292878045313} is an apocalyptic number.

It is an amenable number.

1292878045313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1292878045313 is an equidigital number, since it uses as much as digits as its factorization.

1292878045313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 1292878045313 in words is "one trillion, two hundred ninety-two billion, eight hundred seventy-eight million, forty-five thousand, three hundred thirteen".