2091299231 has 8 divisors (see below), whose sum is σ = 2390342304. Its totient is φ = 1792327680.

The previous prime is 2091299227. The next prime is 2091299257. The reversal of 2091299231 is 1329921902.

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 2091299231 - 2² = 2091299227 is a prime.

It is a super-2 number, since 2×2091299231² = 8747064947162382722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091299261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81971 + ... + 104411.

It is an arithmetic number, because the mean of its divisors is an integer number (298792788).

Almost surely, 2^2091299231 is an apocalyptic number.

2091299231 is a deficient number, since it is larger than the sum of its proper divisors (299043073).

2091299231 is a wasteful number, since it uses less digits than its factorization.

2091299231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35761.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 2091299231 is about 45730.7252402583. The cubic root of 2091299231 is about 1278.8081416569.

The spelling of 2091299231 in words is "two billion, ninety-one million, two hundred ninety-nine thousand, two hundred thirty-one".