2121311103302 has 4 divisors (see below), whose sum is σ = 3181966654956. Its totient is φ = 1060655551650.

The previous prime is 2121311103287. The next prime is 2121311103319. The reversal of 2121311103302 is 2033011131212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530327775824 + ... + 530327775827.

It is an arithmetic number, because the mean of its divisors is an integer number (795491663739).

Almost surely, 2^{2121311103302} is an apocalyptic number.

2121311103302 is a deficient number, since it is larger than the sum of its proper divisors (1060655551654).

2121311103302 is a wasteful number, since it uses less digits than its factorization.

2121311103302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060655551653.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2121311103302 its reverse (2033011131212), we get a palindrome (4154322234514).

The spelling of 2121311103302 in words is "two trillion, one hundred twenty-one billion, three hundred eleven million, one hundred three thousand, three hundred two".