2101333421 has 8 divisors (see below), whose sum is σ = 2293725600. Its totient is φ = 1909168240.

The previous prime is 2101333369. The next prime is 2101333457. The reversal of 2101333421 is 1243331012.

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 2101333421 - 2¹⁰ = 2101332397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2101333393 and 2101333402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101333121) 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, 37091 + ... + 74688.

It is an arithmetic number, because the mean of its divisors is an integer number (286715700).

Almost surely, 2^2101333421 is an apocalyptic number.

It is an amenable number.

2101333421 is a deficient number, since it is larger than the sum of its proper divisors (192392179).

2101333421 is a wasteful number, since it uses less digits than its factorization.

2101333421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113499.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2101333421 is about 45840.3034566745. The cubic root of 2101333421 is about 1280.8501475062.

Adding to 2101333421 its reverse (1243331012), we get a palindrome (3344664433).

The spelling of 2101333421 in words is "two billion, one hundred one million, three hundred thirty-three thousand, four hundred twenty-one".