2101320002 has 4 divisors (see below), whose sum is σ = 3151980006. Its totient is φ = 1050660000.

The previous prime is 2101319999. The next prime is 2101320017. The reversal of 2101320002 is 2000231012.

It is a happy number.

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., 1311091681 + 790228321 = 36209^2 + 28111^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525329999 + ... + 525330002.

Almost surely, 2^2101320002 is an apocalyptic number.

2101320002 is a deficient number, since it is larger than the sum of its proper divisors (1050660004).

2101320002 is a wasteful number, since it uses less digits than its factorization.

2101320002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050660003.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2101320002 is about 45840.1570896087. The cubic root of 2101320002 is about 1280.8474210208.

Adding to 2101320002 its reverse (2000231012), we get a palindrome (4101551014).

The spelling of 2101320002 in words is "two billion, one hundred one million, three hundred twenty thousand, two".