2111303131 has 12 divisors (see below), whose sum is σ = 2457967680. Its totient is φ = 1808242800.

The previous prime is 2111303107. The next prime is 2111303137. The reversal of 2111303131 is 1313031112.

It is not a de Polignac number, because 2111303131 - 2¹¹ = 2111301083 is a prime.

It is a super-2 number, since 2×2111303131² = 8915201821940806322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111303137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47190 + ... + 80308.

It is an arithmetic number, because the mean of its divisors is an integer number (204830640).

Almost surely, 2^2111303131 is an apocalyptic number.

2111303131 is a deficient number, since it is larger than the sum of its proper divisors (346664549).

2111303131 is a wasteful number, since it uses less digits than its factorization.

2111303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34434 (or 34427 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 2111303131 is about 45948.9187141547. The cubic root of 2111303131 is about 1282.8726033917.

Adding to 2111303131 its reverse (1313031112), we get a palindrome (3424334243).

The spelling of 2111303131 in words is "two billion, one hundred eleven million, three hundred three thousand, one hundred thirty-one".