2991103131 has 24 divisors (see below), whose sum is σ = 4246925904. Its totient is φ = 1866078720.

The previous prime is 2991103069. The next prime is 2991103133. The reversal of 2991103131 is 1313011992.

It is a happy number.

It is not a de Polignac number, because 2991103131 - 2⁹ = 2991102619 is a prime.

It is a super-2 number, since 2×2991103131² = 17893395880556006322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2991103133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2018911 + ... + 2020391.

It is an arithmetic number, because the mean of its divisors is an integer number (176955246).

Almost surely, 2^2991103131 is an apocalyptic number.

2991103131 is a deficient number, since it is larger than the sum of its proper divisors (1255822773).

2991103131 is a wasteful number, since it uses less digits than its factorization.

2991103131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 2991103131 is about 54690.9785156565. The cubic root of 2991103131 is about 1440.8224357628.

The spelling of 2991103131 in words is "two billion, nine hundred ninety-one million, one hundred three thousand, one hundred thirty-one".