11720290326 has 16 divisors (see below), whose sum is σ = 23491213824. Its totient is φ = 3898324584.

The previous prime is 11720290271. The next prime is 11720290333. The reversal of 11720290326 is 62309202711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2106706 + ... + 2112261.

It is an arithmetic number, because the mean of its divisors is an integer number (1468200864).

Almost surely, 2^11720290326 is an apocalyptic number.

11720290326 is an abundant number, since it is smaller than the sum of its proper divisors (11770923498).

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

11720290326 is a wasteful number, since it uses less digits than its factorization.

11720290326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219435.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 11720290326 in words is "eleven billion, seven hundred twenty million, two hundred ninety thousand, three hundred twenty-six".