21030200319 has 16 divisors (see below), whose sum is σ = 29692984320. Its totient is φ = 13193957760.

The previous prime is 21030200311. The next prime is 21030200339. The reversal of 21030200319 is 91300203012.

It is a happy number.

It is not a de Polignac number, because 21030200319 - 2³ = 21030200311 is a prime.

It is a super-2 number, since 2×21030200319² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21030200295 and 21030200304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030200311) 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, 614674 + ... + 647984.

It is an arithmetic number, because the mean of its divisors is an integer number (1855811520).

Almost surely, 2^21030200319 is an apocalyptic number.

21030200319 is a deficient number, since it is larger than the sum of its proper divisors (8662784001).

21030200319 is a wasteful number, since it uses less digits than its factorization.

21030200319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45710.

The product of its (nonzero) digits is 324, while the sum is 21.

The spelling of 21030200319 in words is "twenty-one billion, thirty million, two hundred thousand, three hundred nineteen".