111213120132251 has 2 divisors, whose sum is σ = 111213120132252. Its totient is φ = 111213120132250.

The previous prime is 111213120132211. The next prime is 111213120132253. The reversal of 111213120132251 is 152231021312111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111213120132251 - 2³⁰ = 111212046390427 is a prime.

Together with 111213120132253, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111213120132251.

It is not a weakly prime, because it can be changed into another prime (111213120132253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606560066125 + 55606560066126.

It is an arithmetic number, because the mean of its divisors is an integer number (55606560066126).

Almost surely, 2^{111213120132251} is an apocalyptic number.

111213120132251 is a deficient number, since it is larger than the sum of its proper divisors (1).

111213120132251 is an equidigital number, since it uses as much as digits as its factorization.

111213120132251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 111213120132251 its reverse (152231021312111), we get a palindrome (263444141444362).

The spelling of 111213120132251 in words is "one hundred eleven trillion, two hundred thirteen billion, one hundred twenty million, one hundred thirty-two thousand, two hundred fifty-one".