2051115131 has 8 divisors (see below), whose sum is σ = 2209401264. Its totient is φ = 1892901600.

The previous prime is 2051115119. The next prime is 2051115163. The reversal of 2051115131 is 1315111502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051115131 is a prime.

It is a super-2 number, since 2×2051115131² = 8414146561234294322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051115191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50045 + ... + 81281.

It is an arithmetic number, because the mean of its divisors is an integer number (276175158).

Almost surely, 2^2051115131 is an apocalyptic number.

2051115131 is a deficient number, since it is larger than the sum of its proper divisors (158286133).

2051115131 is a wasteful number, since it uses less digits than its factorization.

2051115131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36301.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 2051115131 is about 45289.2385782760. The cubic root of 2051115131 is about 1270.5643906824.

Adding to 2051115131 its reverse (1315111502), we get a palindrome (3366226633).

The spelling of 2051115131 in words is "two billion, fifty-one million, one hundred fifteen thousand, one hundred thirty-one".