2102321442 has 32 divisors (see below), whose sum is σ = 4582646208. Its totient is φ = 639072576.

The previous prime is 2102321437. The next prime is 2102321489. The reversal of 2102321442 is 2441232012.

2102321442 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155893 + ... + 168840.

It is an arithmetic number, because the mean of its divisors is an integer number (143207694).

Almost surely, 2^2102321442 is an apocalyptic number.

2102321442 is an abundant number, since it is smaller than the sum of its proper divisors (2480324766).

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

2102321442 is a wasteful number, since it uses less digits than its factorization.

2102321442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324834.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2102321442 is about 45851.0789622229. The cubic root of 2102321442 is about 1281.0508626872.

Adding to 2102321442 its reverse (2441232012), we get a palindrome (4543553454).

The spelling of 2102321442 in words is "two billion, one hundred two million, three hundred twenty-one thousand, four hundred forty-two".