111220997143 has 2 divisors, whose sum is σ = 111220997144. Its totient is φ = 111220997142.

The previous prime is 111220997099. The next prime is 111220997179. The reversal of 111220997143 is 341799022111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111220997143 - 2¹³ = 111220988951 is a prime.

It is a super-2 number, since 2×111220997143² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111220997096 and 111220997105.

It is a congruent number.

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, 55610498571 + 55610498572.

It is an arithmetic number, because the mean of its divisors is an integer number (55610498572).

Almost surely, 2^111220997143 is an apocalyptic number.

111220997143 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220997143 is an equidigital number, since it uses as much as digits as its factorization.

111220997143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The spelling of 111220997143 in words is "one hundred eleven billion, two hundred twenty million, nine hundred ninety-seven thousand, one hundred forty-three".