2111312312 has 32 divisors (see below), whose sum is σ = 3983126400. Its totient is φ = 1049164800.

The previous prime is 2111312309. The next prime is 2111312321. The reversal of 2111312312 is 2132131112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466489 + ... + 1467927.

It is an arithmetic number, because the mean of its divisors is an integer number (124472700).

Almost surely, 2^2111312312 is an apocalyptic number.

It is an amenable number.

2111312312 is a deficient number, since it is larger than the sum of its proper divisors (1871814088).

2111312312 is a wasteful number, since it uses less digits than its factorization.

2111312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447 (or 2443 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 2111312312 is about 45949.0186184645. The cubic root of 2111312312 is about 1282.8744629125.

Adding to 2111312312 its reverse (2132131112), we get a palindrome (4243443424).

The spelling of 2111312312 in words is "two billion, one hundred eleven million, three hundred twelve thousand, three hundred twelve".