111012198929 has 2 divisors, whose sum is σ = 111012198930. Its totient is φ = 111012198928.

The previous prime is 111012198919. The next prime is 111012198949. The reversal of 111012198929 is 929891210111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79876890625 + 31135308304 = 282625^2 + 176452^2 .

It is an emirp because it is prime and its reverse (929891210111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111012198929 is a prime.

It is a super-2 number, since 2×111012198929² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111012198929.

It is not a weakly prime, because it can be changed into another prime (111012198919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506099464 + 55506099465.

It is an arithmetic number, because the mean of its divisors is an integer number (55506099465).

Almost surely, 2^111012198929 is an apocalyptic number.

It is an amenable number.

111012198929 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012198929 is an equidigital number, since it uses as much as digits as its factorization.

111012198929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 44.

The spelling of 111012198929 in words is "one hundred eleven billion, twelve million, one hundred ninety-eight thousand, nine hundred twenty-nine".