21210143319 has 12 divisors (see below), whose sum is σ = 30940210392. Its totient is φ = 14000094000.

The previous prime is 21210143293. The next prime is 21210143341. The reversal of 21210143319 is 91334101212.

21210143319 is a `hidden beast` number, since 2 + 1 + 210 + 1 + 433 + 19 = 666.

It is not a de Polignac number, because 21210143319 - 2¹⁹ = 21209619031 is a prime.

It is a super-2 number, since 2×21210143319² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21210143292 and 21210143301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210143389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11665837 + ... + 11667654.

It is an arithmetic number, because the mean of its divisors is an integer number (2578350866).

Almost surely, 2^21210143319 is an apocalyptic number.

21210143319 is a deficient number, since it is larger than the sum of its proper divisors (9730067073).

21210143319 is a wasteful number, since it uses less digits than its factorization.

21210143319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23333598 (or 23333595 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 21210143319 in words is "twenty-one billion, two hundred ten million, one hundred forty-three thousand, three hundred nineteen".