21021300213319 has 16 divisors (see below), whose sum is σ = 24151388724736. Its totient is φ = 17923066408800.

The previous prime is 21021300213317. The next prime is 21021300213323. The reversal of 21021300213319 is 91331200312012.

It is not a de Polignac number, because 21021300213319 - 2¹ = 21021300213317 is a prime.

It is a super-2 number, since 2×21021300213319² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21021300213317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1182132 + ... + 6590905.

It is an arithmetic number, because the mean of its divisors is an integer number (1509461795296).

Almost surely, 2^{21021300213319} is an apocalyptic number.

21021300213319 is a deficient number, since it is larger than the sum of its proper divisors (3130088511417).

21021300213319 is a wasteful number, since it uses less digits than its factorization.

21021300213319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775086.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 21021300213319 in words is "twenty-one trillion, twenty-one billion, three hundred million, two hundred thirteen thousand, three hundred nineteen".