21115333130130 has 64 divisors (see below), whose sum is σ = 56824138166400. Its totient is φ = 5579097186240.

The previous prime is 21115333130107. The next prime is 21115333130147. The reversal of 21115333130130 is 3103133351112.

It is a happy number.

21115333130130 is a `hidden beast` number, since 2 + 11 + 15 + 3 + 331 + 301 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21115333130094 and 21115333130103.

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, 358708816 + ... + 358767675.

It is an arithmetic number, because the mean of its divisors is an integer number (887877158850).

Almost surely, 2^{21115333130130} is an apocalyptic number.

21115333130130 is an abundant number, since it is smaller than the sum of its proper divisors (35708805036270).

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

21115333130130 is a wasteful number, since it uses less digits than its factorization.

21115333130130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717476616 (or 717476610 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

Adding to 21115333130130 its reverse (3103133351112), we get a palindrome (24218466481242).

The spelling of 21115333130130 in words is "twenty-one trillion, one hundred fifteen billion, three hundred thirty-three million, one hundred thirty thousand, one hundred thirty".