2102311012 has 24 divisors (see below), whose sum is σ = 3897367040. Its totient is φ = 989483040.

The previous prime is 2102310971. The next prime is 2102311019. The reversal of 2102311012 is 2101132012.

It is a junction number, because it is equal to n+sod(n) for n = 2102310983 and 2102311001.

It is not an unprimeable number, because it can be changed into a prime (2102311019) 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, 76164 + ... + 100027.

Almost surely, 2^2102311012 is an apocalyptic number.

It is an amenable number.

2102311012 is a deficient number, since it is larger than the sum of its proper divisors (1795056028).

2102311012 is a wasteful number, since it uses less digits than its factorization.

2102311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176371 (or 176369 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2102311012 is about 45850.9652243003. The cubic root of 2102311012 is about 1281.0487441747.

Adding to 2102311012 its reverse (2101132012), we get a palindrome (4203443024).

The spelling of 2102311012 in words is "two billion, one hundred two million, three hundred eleven thousand, twelve".