21058653230 has 32 divisors (see below), whose sum is σ = 40979014560. Its totient is φ = 7764439680.

The previous prime is 21058653229. The next prime is 21058653247. The reversal of 21058653230 is 3235685012.

It is a super-2 number, since 2×21058653230² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1490741 + ... + 1504800.

It is an arithmetic number, because the mean of its divisors is an integer number (1280594205).

Almost surely, 2^21058653230 is an apocalyptic number.

21058653230 is a deficient number, since it is larger than the sum of its proper divisors (19920361330).

21058653230 is a wasteful number, since it uses less digits than its factorization.

21058653230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995604.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 21058653230 in words is "twenty-one billion, fifty-eight million, six hundred fifty-three thousand, two hundred thirty".