7000720506121 has 4 divisors (see below), whose sum is σ = 7105208871952. Its totient is φ = 6896232140292.

The previous prime is 7000720506119. The next prime is 7000720506139. The reversal of 7000720506121 is 1216050270007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7000720506121 - 2¹ = 7000720506119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7000720509121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52244182815 + ... + 52244182948.

It is an arithmetic number, because the mean of its divisors is an integer number (1776302217988).

Almost surely, 2^{7000720506121} is an apocalyptic number.

It is an amenable number.

7000720506121 is a deficient number, since it is larger than the sum of its proper divisors (104488365831).

7000720506121 is a wasteful number, since it uses less digits than its factorization.

7000720506121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104488365830.

The product of its (nonzero) digits is 5880, while the sum is 31.

Adding to 7000720506121 its reverse (1216050270007), we get a palindrome (8216770776128).

The spelling of 7000720506121 in words is "seven trillion, seven hundred twenty million, five hundred six thousand, one hundred twenty-one".