2231011987 has 8 divisors (see below), whose sum is σ = 2270948400. Its totient is φ = 2191184160.

The previous prime is 2231011969. The next prime is 2231012011. The reversal of 2231011987 is 7891101322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2231011987 - 2²³ = 2222623379 is a prime.

It is a super-3 number, since 3×2231011987³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231011907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14889 + ... + 68437.

It is an arithmetic number, because the mean of its divisors is an integer number (283868550).

Almost surely, 2^2231011987 is an apocalyptic number.

2231011987 is a deficient number, since it is larger than the sum of its proper divisors (39936413).

2231011987 is an equidigital number, since it uses as much as digits as its factorization.

2231011987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54293.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 2231011987 is about 47233.5896052798. The cubic root of 2231011987 is about 1306.6741551774.

The spelling of 2231011987 in words is "two billion, two hundred thirty-one million, eleven thousand, nine hundred eighty-seven".