7118820013 has 4 divisors (see below), whose sum is σ = 7119053280. Its totient is φ = 7118586748.

The previous prime is 7118819993. The next prime is 7118820029. The reversal of 7118820013 is 3100288117.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-7118820013 is a prime.

It is a super-3 number, since 3×7118820013³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7118820043) 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, 62473 + ... + 134686.

It is an arithmetic number, because the mean of its divisors is an integer number (1779763320).

Almost surely, 2^7118820013 is an apocalyptic number.

It is an amenable number.

7118820013 is a deficient number, since it is larger than the sum of its proper divisors (233267).

7118820013 is a wasteful number, since it uses less digits than its factorization.

7118820013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233266.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 7118820013 is about 84373.1000556457. The cubic root of 7118820013 is about 1923.6940611549.

The spelling of 7118820013 in words is "seven billion, one hundred eighteen million, eight hundred twenty thousand, thirteen".