111110050621 has 2 divisors, whose sum is σ = 111110050622. Its totient is φ = 111110050620.

The previous prime is 111110050609. The next prime is 111110050631. The reversal of 111110050621 is 126050011111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106742691225 + 4367359396 = 326715^2 + 66086^2 .

It is a cyclic number.

It is not a de Polignac number, because 111110050621 - 2⁵ = 111110050589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111110050631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555025310 + 55555025311.

It is an arithmetic number, because the mean of its divisors is an integer number (55555025311).

Almost surely, 2^111110050621 is an apocalyptic number.

It is an amenable number.

111110050621 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110050621 is an equidigital number, since it uses as much as digits as its factorization.

111110050621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 111110050621 its reverse (126050011111), we get a palindrome (237160061732).

The spelling of 111110050621 in words is "one hundred eleven billion, one hundred ten million, fifty thousand, six hundred twenty-one".