111203121299 has 2 divisors, whose sum is σ = 111203121300. Its totient is φ = 111203121298.

The previous prime is 111203121269. The next prime is 111203121331. The reversal of 111203121299 is 992121302111.

It is a happy number.

It is an a-pointer prime, because the next prime (111203121331) can be obtained adding 111203121299 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111203121299 is a prime.

It is a super-2 number, since 2×111203121299² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111203121259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55601560649 + 55601560650.

It is an arithmetic number, because the mean of its divisors is an integer number (55601560650).

Almost surely, 2^111203121299 is an apocalyptic number.

111203121299 is a deficient number, since it is larger than the sum of its proper divisors (1).

111203121299 is an equidigital number, since it uses as much as digits as its factorization.

111203121299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The spelling of 111203121299 in words is "one hundred eleven billion, two hundred three million, one hundred twenty-one thousand, two hundred ninety-nine".