21301010312 has 8 divisors (see below), whose sum is σ = 39939394350. Its totient is φ = 10650505152.

The previous prime is 21301010293. The next prime is 21301010327.

21301010312 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 21142904836 + 158105476 = 145406^2 + 12574^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331313137 + ... + 1331313152.

Almost surely, 2^21301010312 is an apocalyptic number.

It is an amenable number.

21301010312 is a deficient number, since it is larger than the sum of its proper divisors (18638384038).

21301010312 is a wasteful number, since it uses less digits than its factorization.

21301010312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662626295 (or 2662626291 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

It can be divided in two parts, 213010 and 10312, that added together give a palindrome (223322).

The spelling of 21301010312 in words is "twenty-one billion, three hundred one million, ten thousand, three hundred twelve".