2101310333021 has 8 divisors (see below), whose sum is σ = 2263402996224. Its totient is φ = 1945111948560.

The previous prime is 2101310333011. The next prime is 2101310333051. The reversal of 2101310333021 is 1203330131012.

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

It is not a de Polignac number, because 2101310333021 - 2¹⁸ = 2101310070877 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 = 2101310332984 and 2101310333002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101310333011) 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, 1473568946 + ... + 1473570371.

It is an arithmetic number, because the mean of its divisors is an integer number (282925374528).

Almost surely, 2^{2101310333021} is an apocalyptic number.

It is an amenable number.

2101310333021 is a deficient number, since it is larger than the sum of its proper divisors (162092663203).

2101310333021 is a wasteful number, since it uses less digits than its factorization.

2101310333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947139371.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2101310333021 its reverse (1203330131012), we get a palindrome (3304640464033).

The spelling of 2101310333021 in words is "two trillion, one hundred one billion, three hundred ten million, three hundred thirty-three thousand, twenty-one".