2102103234 has 108 divisors (see below), whose sum is σ = 5823890982. Its totient is φ = 545973120.

The previous prime is 2102103233. The next prime is 2102103253. The reversal of 2102103234 is 4323012012.

It can be written as a sum of positive squares in only one way, i.e., 2029052025 + 73051209 = 45045^2 + 8547^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2102103233) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 96874 + ... + 116570.

Almost surely, 2^2102103234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102103234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2911945491).

2102103234 is an abundant number, since it is smaller than the sum of its proper divisors (3721787748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102103234 is a wasteful number, since it uses less digits than its factorization.

2102103234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19741 (or 19720 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2102103234 is about 45848.6993708655. The cubic root of 2102103234 is about 1281.0065394273.

Adding to 2102103234 its reverse (4323012012), we get a palindrome (6425115246).

It can be divided in two parts, 210210 and 3234, that added together give a square (213444 = 462²).

The spelling of 2102103234 in words is "two billion, one hundred two million, one hundred three thousand, two hundred thirty-four".