2239356856111 has 2 divisors, whose sum is σ = 2239356856112. Its totient is φ = 2239356856110.

The previous prime is 2239356856091. The next prime is 2239356856123. The reversal of 2239356856111 is 1116586539322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2239356856111 is a prime.

It is a super-2 number, since 2×2239356856111² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2239356856411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119678428055 + 1119678428056.

It is an arithmetic number, because the mean of its divisors is an integer number (1119678428056).

Almost surely, 2^{2239356856111} is an apocalyptic number.

2239356856111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239356856111 is an equidigital number, since it uses as much as digits as its factorization.

2239356856111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 52.

The spelling of 2239356856111 in words is "two trillion, two hundred thirty-nine billion, three hundred fifty-six million, eight hundred fifty-six thousand, one hundred eleven".