1387325911117 has 2 divisors, whose sum is σ = 1387325911118. Its totient is φ = 1387325911116.

The previous prime is 1387325911099. The next prime is 1387325911151. The reversal of 1387325911117 is 7111195237831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 987372119556 + 399953791561 = 993666^2 + 632419^2 .

It is a cyclic number.

It is not a de Polignac number, because 1387325911117 - 2¹⁹ = 1387325386829 is a prime.

It is a super-2 number, since 2×1387325911117² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387325911717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693662955558 + 693662955559.

It is an arithmetic number, because the mean of its divisors is an integer number (693662955559).

Almost surely, 2^{1387325911117} is an apocalyptic number.

It is an amenable number.

1387325911117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387325911117 is an equidigital number, since it uses as much as digits as its factorization.

1387325911117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 49.

The spelling of 1387325911117 in words is "one trillion, three hundred eighty-seven billion, three hundred twenty-five million, nine hundred eleven thousand, one hundred seventeen".