12201540311 has 4 divisors (see below), whose sum is σ = 12401565624. Its totient is φ = 12001515000.

The previous prime is 12201540193. The next prime is 12201540313. The reversal of 12201540311 is 11304510221.

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

It is a cyclic number.

It is not a de Polignac number, because 12201540311 - 2¹⁴ = 12201523927 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 (12201540313) 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, 100012565 + ... + 100012686.

It is an arithmetic number, because the mean of its divisors is an integer number (3100391406).

Almost surely, 2^12201540311 is an apocalyptic number.

12201540311 is a deficient number, since it is larger than the sum of its proper divisors (200025313).

12201540311 is an equidigital number, since it uses as much as digits as its factorization.

12201540311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200025312.

The product of its (nonzero) digits is 240, while the sum is 20.

The spelling of 12201540311 in words is "twelve billion, two hundred one million, five hundred forty thousand, three hundred eleven".