2130111304 has 8 divisors (see below), whose sum is σ = 3993958710. Its totient is φ = 1065055648.

The previous prime is 2130111293. The next prime is 2130111307. The reversal of 2130111304 is 4031110312.

It can be written as a sum of positive squares in only one way, i.e., 1718102500 + 412008804 = 41450^2 + 20298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2130111307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133131949 + ... + 133131964.

Almost surely, 2^2130111304 is an apocalyptic number.

It is an amenable number.

2130111304 is a deficient number, since it is larger than the sum of its proper divisors (1863847406).

2130111304 is a wasteful number, since it uses less digits than its factorization.

2130111304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266263919 (or 266263915 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2130111304 is about 46153.1288646826. The cubic root of 2130111304 is about 1286.6707622744.

Adding to 2130111304 its reverse (4031110312), we get a palindrome (6161221616).

The spelling of 2130111304 in words is "two billion, one hundred thirty million, one hundred eleven thousand, three hundred four".