3187857977123 has 2 divisors, whose sum is σ = 3187857977124. Its totient is φ = 3187857977122.

The previous prime is 3187857977113. The next prime is 3187857977237. The reversal of 3187857977123 is 3217797587813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3187857977123 - 2⁸ = 3187857976867 is a prime.

It is not a weakly prime, because it can be changed into another prime (3187857977113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593928988561 + 1593928988562.

It is an arithmetic number, because the mean of its divisors is an integer number (1593928988562).

Almost surely, 2^{3187857977123} is an apocalyptic number.

3187857977123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3187857977123 is an equidigital number, since it uses as much as digits as its factorization.

3187857977123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124467840, while the sum is 68.

The spelling of 3187857977123 in words is "three trillion, one hundred eighty-seven billion, eight hundred fifty-seven million, nine hundred seventy-seven thousand, one hundred twenty-three".