111543923297 has 2 divisors, whose sum is σ = 111543923298. Its totient is φ = 111543923296.

The previous prime is 111543923291. The next prime is 111543923317. The reversal of 111543923297 is 792329345111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79794385441 + 31749537856 = 282479^2 + 178184^2 .

It is a cyclic number.

It is not a de Polignac number, because 111543923297 - 2²⁶ = 111476814433 is a prime.

It is not a weakly prime, because it can be changed into another prime (111543923291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55771961648 + 55771961649.

It is an arithmetic number, because the mean of its divisors is an integer number (55771961649).

Almost surely, 2^111543923297 is an apocalyptic number.

It is an amenable number.

111543923297 is a deficient number, since it is larger than the sum of its proper divisors (1).

111543923297 is an equidigital number, since it uses as much as digits as its factorization.

111543923297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The spelling of 111543923297 in words is "one hundred eleven billion, five hundred forty-three million, nine hundred twenty-three thousand, two hundred ninety-seven".