2111144968 has 8 divisors (see below), whose sum is σ = 3958396830. Its totient is φ = 1055572480.

The previous prime is 2111144963. The next prime is 2111144993. The reversal of 2111144968 is 8694411112.

It can be written as a sum of positive squares in only one way, i.e., 1845389764 + 265755204 = 42958^2 + 16302^2 .

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

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2111144963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131946553 + ... + 131946568.

Almost surely, 2^2111144968 is an apocalyptic number.

It is an amenable number.

2111144968 is a deficient number, since it is larger than the sum of its proper divisors (1847251862).

2111144968 is a wasteful number, since it uses less digits than its factorization.

2111144968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263893127 (or 263893123 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 2111144968 is about 45947.1976076888. The cubic root of 2111144968 is about 1282.8405681929.

It can be divided in two parts, 2111144 and 968, that added together give a palindrome (2112112).

The spelling of 2111144968 in words is "two billion, one hundred eleven million, one hundred forty-four thousand, nine hundred sixty-eight".