2998129111 has 4 divisors (see below), whose sum is σ = 3155925400. Its totient is φ = 2840332824.

The previous prime is 2998129103. The next prime is 2998129117. The reversal of 2998129111 is 1119218992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2998129111 - 2³ = 2998129103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2998129117) 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 in 3 ways as a sum of consecutive naturals, for example, 78898116 + ... + 78898153.

It is an arithmetic number, because the mean of its divisors is an integer number (788981350).

Almost surely, 2^2998129111 is an apocalyptic number.

2998129111 is a deficient number, since it is larger than the sum of its proper divisors (157796289).

2998129111 is a wasteful number, since it uses less digits than its factorization.

2998129111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157796288.

The product of its digits is 23328, while the sum is 43.

The square root of 2998129111 is about 54755.1742851760. The cubic root of 2998129111 is about 1441.9496980894.

The spelling of 2998129111 in words is "two billion, nine hundred ninety-eight million, one hundred twenty-nine thousand, one hundred eleven".