1371718825121 has 2 divisors, whose sum is σ = 1371718825122. Its totient is φ = 1371718825120.

The previous prime is 1371718825109. The next prime is 1371718825133. The reversal of 1371718825121 is 1215288171731.

It is a balanced prime because it is at equal distance from previous prime (1371718825109) and next prime (1371718825133).

It can be written as a sum of positive squares in only one way, i.e., 1124530872721 + 247187952400 = 1060439^2 + 497180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1371718825121 - 2³⁸ = 1096840918177 is a prime.

It is a super-2 number, since 2×1371718825121² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1371718825621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685859412560 + 685859412561.

It is an arithmetic number, because the mean of its divisors is an integer number (685859412561).

Almost surely, 2^{1371718825121} is an apocalyptic number.

It is an amenable number.

1371718825121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371718825121 is an equidigital number, since it uses as much as digits as its factorization.

1371718825121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 47.

The spelling of 1371718825121 in words is "one trillion, three hundred seventy-one billion, seven hundred eighteen million, eight hundred twenty-five thousand, one hundred twenty-one".