2121333104403 has 48 divisors (see below), whose sum is σ = 3273695792640. Its totient is φ = 1319014674432.

The previous prime is 2121333104393. The next prime is 2121333104419. The reversal of 2121333104403 is 3044013331212.

It is a happy number.

2121333104403 is a `hidden beast` number, since 2 + 1 + 213 + 3 + 3 + 1 + 0 + 440 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2121333104403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121333104453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 178122613 + ... + 178134521.

It is an arithmetic number, because the mean of its divisors is an integer number (68201995680).

Almost surely, 2^{2121333104403} is an apocalyptic number.

2121333104403 is a deficient number, since it is larger than the sum of its proper divisors (1152362688237).

2121333104403 is a wasteful number, since it uses less digits than its factorization.

2121333104403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22348 (or 22345 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 2121333104403 its reverse (3044013331212), we get a palindrome (5165346435615).

The spelling of 2121333104403 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-three million, one hundred four thousand, four hundred three".