111684886290413 has 2 divisors, whose sum is σ = 111684886290414. Its totient is φ = 111684886290412.

The previous prime is 111684886290407. The next prime is 111684886290443. The reversal of 111684886290413 is 314092688486111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109949862547204 + 1735023743209 = 10485698^2 + 1317203^2 .

It is a cyclic number.

It is not a de Polignac number, because 111684886290413 - 2¹² = 111684886286317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111684886290403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55842443145206 + 55842443145207.

It is an arithmetic number, because the mean of its divisors is an integer number (55842443145207).

Almost surely, 2^{111684886290413} is an apocalyptic number.

It is an amenable number.

111684886290413 is a deficient number, since it is larger than the sum of its proper divisors (1).

111684886290413 is an equidigital number, since it uses as much as digits as its factorization.

111684886290413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15925248, while the sum is 62.

The spelling of 111684886290413 in words is "one hundred eleven trillion, six hundred eighty-four billion, eight hundred eighty-six million, two hundred ninety thousand, four hundred thirteen".