21103001212130 has 64 divisors (see below), whose sum is σ = 40582228608000. Its totient is φ = 7887091204608.

The previous prime is 21103001212127. The next prime is 21103001212141. The reversal of 21103001212130 is 3121210030112.

It is a junction number, because it is equal to n+sod(n) for n = 21103001212099 and 21103001212108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7485110 + ... + 9911249.

It is an arithmetic number, because the mean of its divisors is an integer number (634097322000).

Almost surely, 2^{21103001212130} is an apocalyptic number.

21103001212130 is a deficient number, since it is larger than the sum of its proper divisors (19479227395870).

21103001212130 is a wasteful number, since it uses less digits than its factorization.

21103001212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17396531.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21103001212130 its reverse (3121210030112), we get a palindrome (24224211242242).

The spelling of 21103001212130 in words is "twenty-one trillion, one hundred three billion, one million, two hundred twelve thousand, one hundred thirty".