73130113210021 has 8 divisors (see below), whose sum is σ = 84039025126784. Its totient is φ = 62336639514960.

The previous prime is 73130113210003. The next prime is 73130113210069. The reversal of 73130113210021 is 12001231103137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73130113210021 - 2⁷ = 73130113209893 is a prime.

It is a super-2 number, since 2×73130113210021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73130113210001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28859554065 + ... + 28859556598.

It is an arithmetic number, because the mean of its divisors is an integer number (10504878140848).

Almost surely, 2^{73130113210021} is an apocalyptic number.

It is an amenable number.

73130113210021 is a deficient number, since it is larger than the sum of its proper divisors (10908911916763).

73130113210021 is a wasteful number, since it uses less digits than its factorization.

73130113210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57719110851.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 73130113210021 its reverse (12001231103137), we get a palindrome (85131344313158).

The spelling of 73130113210021 in words is "seventy-three trillion, one hundred thirty billion, one hundred thirteen million, two hundred ten thousand, twenty-one".