2121130403 has 8 divisors (see below), whose sum is σ = 2529547008. Its totient is φ = 1739063304.

The previous prime is 2121130399. The next prime is 2121130423. The reversal of 2121130403 is 3040311212.

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

It is not a de Polignac number, because 2121130403 - 2² = 2121130399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121130423) 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, 6587201 + ... + 6587522.

It is an arithmetic number, because the mean of its divisors is an integer number (316193376).

Almost surely, 2^2121130403 is an apocalyptic number.

2121130403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2121130403 is a deficient number, since it is larger than the sum of its proper divisors (408416605).

2121130403 is a wasteful number, since it uses less digits than its factorization.

2121130403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13174753.

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

The square root of 2121130403 is about 46055.7314891426. The cubic root of 2121130403 is about 1284.8599428471.

Adding to 2121130403 its reverse (3040311212), we get a palindrome (5161441615).

The spelling of 2121130403 in words is "two billion, one hundred twenty-one million, one hundred thirty thousand, four hundred three".