111220097123 has 2 divisors, whose sum is σ = 111220097124. Its totient is φ = 111220097122.

The previous prime is 111220097081. The next prime is 111220097143. The reversal of 111220097123 is 321790022111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111220097123 - 2⁶ = 111220097059 is a prime.

It is not a weakly prime, because it can be changed into another prime (111220097143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610048561 + 55610048562.

It is an arithmetic number, because the mean of its divisors is an integer number (55610048562).

Almost surely, 2^111220097123 is an apocalyptic number.

111220097123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220097123 is an equidigital number, since it uses as much as digits as its factorization.

111220097123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 111220097123 in words is "one hundred eleven billion, two hundred twenty million, ninety-seven thousand, one hundred twenty-three".