2231872361 has 4 divisors (see below), whose sum is σ = 2243088000. Its totient is φ = 2220656724.

The previous prime is 2231872303. The next prime is 2231872381. The reversal of 2231872361 is 1632781322.

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-2231872361 is a prime.

It is a super-3 number, since 3×2231872361³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231872381) 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, 5607521 + ... + 5607918.

It is an arithmetic number, because the mean of its divisors is an integer number (560772000).

Almost surely, 2^2231872361 is an apocalyptic number.

It is an amenable number.

2231872361 is a deficient number, since it is larger than the sum of its proper divisors (11215639).

2231872361 is a wasteful number, since it uses less digits than its factorization.

2231872361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215638.

The product of its digits is 24192, while the sum is 35.

The square root of 2231872361 is about 47242.6963773238. The cubic root of 2231872361 is about 1306.8421034733.

The spelling of 2231872361 in words is "two billion, two hundred thirty-one million, eight hundred seventy-two thousand, three hundred sixty-one".