1238918284111 has 2 divisors, whose sum is σ = 1238918284112. Its totient is φ = 1238918284110.

The previous prime is 1238918284069. The next prime is 1238918284127. The reversal of 1238918284111 is 1114828198321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1238918284111 - 2¹³ = 1238918275919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1238918254111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619459142055 + 619459142056.

It is an arithmetic number, because the mean of its divisors is an integer number (619459142056).

Almost surely, 2^{1238918284111} is an apocalyptic number.

1238918284111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238918284111 is an equidigital number, since it uses as much as digits as its factorization.

1238918284111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 49.

The spelling of 1238918284111 in words is "one trillion, two hundred thirty-eight billion, nine hundred eighteen million, two hundred eighty-four thousand, one hundred eleven".