111121312303 has 2 divisors, whose sum is σ = 111121312304. Its totient is φ = 111121312302.

The previous prime is 111121312297. The next prime is 111121312343. The reversal of 111121312303 is 303213121111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111121312303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111121312343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55560656151 + 55560656152.

It is an arithmetic number, because the mean of its divisors is an integer number (55560656152).

Almost surely, 2^111121312303 is an apocalyptic number.

111121312303 is a deficient number, since it is larger than the sum of its proper divisors (1).

111121312303 is an equidigital number, since it uses as much as digits as its factorization.

111121312303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111121312303 its reverse (303213121111), we get a palindrome (414334433414).

The spelling of 111121312303 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred twelve thousand, three hundred three".