21012333032130 has 32 divisors (see below), whose sum is σ = 55014108303168. Its totient is φ = 5093898916800.

The previous prime is 21012333032111. The next prime is 21012333032149. The reversal of 21012333032130 is 3123033321012.

It is an interprime number because it is at equal distance from previous prime (21012333032111) and next prime (21012333032149).

It is a super-2 number, since 2×21012333032130² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21012333032130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31836867901 + ... + 31836868560.

It is an arithmetic number, because the mean of its divisors is an integer number (1719190884474).

Almost surely, 2^{21012333032130} is an apocalyptic number.

21012333032130 is an abundant number, since it is smaller than the sum of its proper divisors (34001775271038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21012333032130 is a wasteful number, since it uses less digits than its factorization.

21012333032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63673736482.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21012333032130 its reverse (3123033321012), we get a palindrome (24135366353142).

The spelling of 21012333032130 in words is "twenty-one trillion, twelve billion, three hundred thirty-three million, thirty-two thousand, one hundred thirty".