2011231403 has 8 divisors (see below), whose sum is σ = 2087694000. Its totient is φ = 1935242848.

The previous prime is 2011231399. The next prime is 2011231421. The reversal of 2011231403 is 3041321102.

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

It is not a de Polignac number, because 2011231403 - 2² = 2011231399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011231433) 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, 109853 + ... + 126846.

It is an arithmetic number, because the mean of its divisors is an integer number (260961750).

Almost surely, 2^2011231403 is an apocalyptic number.

2011231403 is a deficient number, since it is larger than the sum of its proper divisors (76462597).

2011231403 is a wasteful number, since it uses less digits than its factorization.

2011231403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237021.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2011231403 is about 44846.7546540438. The cubic root of 2011231403 is about 1262.2750956823.

Adding to 2011231403 its reverse (3041321102), we get a palindrome (5052552505).

It can be divided in two parts, 20112 and 31403, that added together give a palindrome (51515).

The spelling of 2011231403 in words is "two billion, eleven million, two hundred thirty-one thousand, four hundred three".