2131450111 has 8 divisors (see below), whose sum is σ = 2441162880. Its totient is φ = 1823042328.

The previous prime is 2131450109. The next prime is 2131450121. The reversal of 2131450111 is 1110541312.

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 2131450111 - 2¹ = 2131450109 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 (2131450121) 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, 322741 + ... + 329278.

It is an arithmetic number, because the mean of its divisors is an integer number (305145360).

Almost surely, 2^2131450111 is an apocalyptic number.

2131450111 is a deficient number, since it is larger than the sum of its proper divisors (309712769).

2131450111 is an equidigital number, since it uses as much as digits as its factorization.

2131450111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652493.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 2131450111 is about 46167.6305543180. The cubic root of 2131450111 is about 1286.9402697960.

Adding to 2131450111 its reverse (1110541312), we get a palindrome (3241991423).

The spelling of 2131450111 in words is "two billion, one hundred thirty-one million, four hundred fifty thousand, one hundred eleven".