21110303002 has 4 divisors (see below), whose sum is σ = 31665454506. Its totient is φ = 10555151500.

The previous prime is 21110302931. The next prime is 21110303017. The reversal of 21110303002 is 20030301112.

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., 12943385361 + 8166917641 = 113769^2 + 90371^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5277575749 + ... + 5277575752.

Almost surely, 2^21110303002 is an apocalyptic number.

21110303002 is a deficient number, since it is larger than the sum of its proper divisors (10555151504).

21110303002 is a wasteful number, since it uses less digits than its factorization.

21110303002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555151503.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21110303002 its reverse (20030301112), we get a palindrome (41140604114).

The spelling of 21110303002 in words is "twenty-one billion, one hundred ten million, three hundred three thousand, two".