21012813711230 has 32 divisors (see below), whose sum is σ = 41303161571328. Its totient is φ = 7633312711200.

The previous prime is 21012813711229. The next prime is 21012813711277. The reversal of 21012813711230 is 3211731821012.

It is a super-2 number, since 2×21012813711230² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96271202 + ... + 96489221.

It is an arithmetic number, because the mean of its divisors is an integer number (1290723799104).

Almost surely, 2^{21012813711230} is an apocalyptic number.

21012813711230 is a deficient number, since it is larger than the sum of its proper divisors (20290347860098).

21012813711230 is a wasteful number, since it uses less digits than its factorization.

21012813711230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192761432.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 21012813711230 in words is "twenty-one trillion, twelve billion, eight hundred thirteen million, seven hundred eleven thousand, two hundred thirty".