2131111130 has 16 divisors (see below), whose sum is σ = 3917617920. Its totient is φ = 834307152.

The previous prime is 2131111127. The next prime is 2131111133. The reversal of 2131111130 is 311111312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2131111127) and next prime (2131111133).

It is not an unprimeable number, because it can be changed into a prime (2131111133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2266670 + ... + 2267609.

It is an arithmetic number, because the mean of its divisors is an integer number (244851120).

Almost surely, 2^2131111130 is an apocalyptic number.

2131111130 is a deficient number, since it is larger than the sum of its proper divisors (1786506790).

2131111130 is a wasteful number, since it uses less digits than its factorization.

2131111130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534333.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 2131111130 is about 46163.9592106223. The cubic root of 2131111130 is about 1286.8720421567.

Adding to 2131111130 its reverse (311111312), we get a palindrome (2442222442).

The spelling of 2131111130 in words is "two billion, one hundred thirty-one million, one hundred eleven thousand, one hundred thirty".