2115133311 has 8 divisors (see below), whose sum is σ = 2842384384. Its totient is φ = 1398985560.

The previous prime is 2115133309. The next prime is 2115133343. The reversal of 2115133311 is 1133315112.

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

It is not a de Polignac number, because 2115133311 - 2¹ = 2115133309 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 (2115133301) 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, 2775385 + ... + 2776146.

It is an arithmetic number, because the mean of its divisors is an integer number (355298048).

Almost surely, 2^2115133311 is an apocalyptic number.

2115133311 is a deficient number, since it is larger than the sum of its proper divisors (727251073).

2115133311 is a wasteful number, since it uses less digits than its factorization.

2115133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551661.

The product of its digits is 270, while the sum is 21.

The square root of 2115133311 is about 45990.5785025585. The cubic root of 2115133311 is about 1283.6479009765.

Adding to 2115133311 its reverse (1133315112), we get a palindrome (3248448423).

The spelling of 2115133311 in words is "two billion, one hundred fifteen million, one hundred thirty-three thousand, three hundred eleven".