21021002321314 has 4 divisors (see below), whose sum is σ = 31531503481974. Its totient is φ = 10510501160656.

The previous prime is 21021002321269. The next prime is 21021002321317. The reversal of 21021002321314 is 41312320012012.

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., 16712193683025 + 4308808638289 = 4088055^2 + 2075767^2 .

It is not an unprimeable number, because it can be changed into a prime (21021002321317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5255250580327 + ... + 5255250580330.

Almost surely, 2^{21021002321314} is an apocalyptic number.

21021002321314 is a deficient number, since it is larger than the sum of its proper divisors (10510501160660).

21021002321314 is a wasteful number, since it uses less digits than its factorization.

21021002321314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510501160659.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21021002321314 its reverse (41312320012012), we get a palindrome (62333322333326).

The spelling of 21021002321314 in words is "twenty-one trillion, twenty-one billion, two million, three hundred twenty-one thousand, three hundred fourteen".