21312113030130 has 32 divisors (see below), whose sum is σ = 55083615217344. Its totient is φ = 5246058591936.

The previous prime is 21312113030071. The next prime is 21312113030141. The reversal of 21312113030130 is 3103031121312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21312113030097 and 21312113030106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27323221444 + ... + 27323222223.

It is an arithmetic number, because the mean of its divisors is an integer number (1721362975542).

Almost surely, 2^{21312113030130} is an apocalyptic number.

21312113030130 is an abundant number, since it is smaller than the sum of its proper divisors (33771502187214).

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

21312113030130 is a wasteful number, since it uses less digits than its factorization.

21312113030130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54646443690.

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

Adding to 21312113030130 its reverse (3103031121312), we get a palindrome (24415144151442).

The spelling of 21312113030130 in words is "twenty-one trillion, three hundred twelve billion, one hundred thirteen million, thirty thousand, one hundred thirty".