2123111102 has 24 divisors (see below), whose sum is σ = 3741309000. Its totient is φ = 900891600.

The previous prime is 2123111101. The next prime is 2123111131. The reversal of 2123111102 is 2011113212.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123111101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97352 + ... + 117147.

It is an arithmetic number, because the mean of its divisors is an integer number (155887875).

Almost surely, 2^2123111102 is an apocalyptic number.

2123111102 is a deficient number, since it is larger than the sum of its proper divisors (1618197898).

2123111102 is a wasteful number, since it uses less digits than its factorization.

2123111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214616 (or 214609 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2123111102 is about 46077.2297561388. The cubic root of 2123111102 is about 1285.2597499605.

Adding to 2123111102 its reverse (2011113212), we get a palindrome (4134224314).

The spelling of 2123111102 in words is "two billion, one hundred twenty-three million, one hundred eleven thousand, one hundred two".