9069121213 has 4 divisors (see below), whose sum is σ = 9069447420. Its totient is φ = 9068795008.

The previous prime is 9069121183. The next prime is 9069121231. The reversal of 9069121213 is 3121219609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5937935364 + 3131185849 = 77058^2 + 55957^2 .

It is a cyclic number.

It is not a de Polignac number, because 9069121213 - 2⁹ = 9069120701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9069121253) 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, 117070 + ... + 178447.

It is an arithmetic number, because the mean of its divisors is an integer number (2267361855).

Almost surely, 2^9069121213 is an apocalyptic number.

It is an amenable number.

9069121213 is a deficient number, since it is larger than the sum of its proper divisors (326207).

9069121213 is a wasteful number, since it uses less digits than its factorization.

9069121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326206.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 9069121213 is about 95231.9337879894. The cubic root of 9069121213 is about 2085.3953564431.

The spelling of 9069121213 in words is "nine billion, sixty-nine million, one hundred twenty-one thousand, two hundred thirteen".