111415420397 has 2 divisors, whose sum is σ = 111415420398. Its totient is φ = 111415420396.

The previous prime is 111415420331. The next prime is 111415420447. The reversal of 111415420397 is 793024514111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101879702596 + 9535717801 = 319186^2 + 97651^2 .

It is a cyclic number.

It is not a de Polignac number, because 111415420397 - 2¹⁶ = 111415354861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111415420397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111415422397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55707710198 + 55707710199.

It is an arithmetic number, because the mean of its divisors is an integer number (55707710199).

Almost surely, 2^111415420397 is an apocalyptic number.

It is an amenable number.

111415420397 is a deficient number, since it is larger than the sum of its proper divisors (1).

111415420397 is an equidigital number, since it uses as much as digits as its factorization.

111415420397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 111415420397 in words is "one hundred eleven billion, four hundred fifteen million, four hundred twenty thousand, three hundred ninety-seven".