111211323403 has 2 divisors, whose sum is σ = 111211323404. Its totient is φ = 111211323402.

The previous prime is 111211323323. The next prime is 111211323449. The reversal of 111211323403 is 304323112111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111211323403 is a prime.

It is not a weakly prime, because it can be changed into another prime (111211323473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605661701 + 55605661702.

It is an arithmetic number, because the mean of its divisors is an integer number (55605661702).

Almost surely, 2^111211323403 is an apocalyptic number.

111211323403 is a deficient number, since it is larger than the sum of its proper divisors (1).

111211323403 is an equidigital number, since it uses as much as digits as its factorization.

111211323403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 111211323403 its reverse (304323112111), we get a palindrome (415534435514).

The spelling of 111211323403 in words is "one hundred eleven billion, two hundred eleven million, three hundred twenty-three thousand, four hundred three".