1279057613131 has 2 divisors, whose sum is σ = 1279057613132. Its totient is φ = 1279057613130.

The previous prime is 1279057613129. The next prime is 1279057613153. The reversal of 1279057613131 is 1313167509721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1279057613131 - 2¹ = 1279057613129 is a prime.

It is a super-2 number, since 2×1279057613131² (a number of 25 digits) contains 22 as substring.

Together with 1279057613129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1279057613111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639528806565 + 639528806566.

It is an arithmetic number, because the mean of its divisors is an integer number (639528806566).

Almost surely, 2^{1279057613131} is an apocalyptic number.

1279057613131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279057613131 is an equidigital number, since it uses as much as digits as its factorization.

1279057613131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 46.

The spelling of 1279057613131 in words is "one trillion, two hundred seventy-nine billion, fifty-seven million, six hundred thirteen thousand, one hundred thirty-one".