111206632321 has 2 divisors, whose sum is σ = 111206632322. Its totient is φ = 111206632320.

The previous prime is 111206632283. The next prime is 111206632337. The reversal of 111206632321 is 123236602111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103748410000 + 7458222321 = 322100^2 + 86361^2 .

It is a cyclic number.

It is not a de Polignac number, because 111206632321 - 2⁷ = 111206632193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111206632321.

It is not a weakly prime, because it can be changed into another prime (111206635321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55603316160 + 55603316161.

It is an arithmetic number, because the mean of its divisors is an integer number (55603316161).

Almost surely, 2^111206632321 is an apocalyptic number.

It is an amenable number.

111206632321 is a deficient number, since it is larger than the sum of its proper divisors (1).

111206632321 is an equidigital number, since it uses as much as digits as its factorization.

111206632321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 111206632321 in words is "one hundred eleven billion, two hundred six million, six hundred thirty-two thousand, three hundred twenty-one".