2102310242 has 4 divisors (see below), whose sum is σ = 3153465366. Its totient is φ = 1051155120.

The previous prime is 2102310241. The next prime is 2102310299. The reversal of 2102310242 is 2420132012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2006054521 + 96255721 = 44789^2 + 9811^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2102310242.

It is not an unprimeable number, because it can be changed into a prime (2102310241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525577559 + ... + 525577562.

Almost surely, 2^2102310242 is an apocalyptic number.

2102310242 is a deficient number, since it is larger than the sum of its proper divisors (1051155124).

2102310242 is a wasteful number, since it uses less digits than its factorization.

2102310242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051155123.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2102310242 is about 45850.9568275298. The cubic root of 2102310242 is about 1281.0485877742.

Adding to 2102310242 its reverse (2420132012), we get a palindrome (4522442254).

The spelling of 2102310242 in words is "two billion, one hundred two million, three hundred ten thousand, two hundred forty-two".