21000010133313 has 24 divisors (see below), whose sum is σ = 32003923236480. Its totient is φ = 13232391245280.

The previous prime is 21000010133279. The next prime is 21000010133353. The reversal of 21000010133313 is 31333101000012.

It is a happy number.

21000010133313 is a `hidden beast` number, since 210 + 0 + 0 + 0 + 10 + 133 + 313 = 666.

It is not a de Polignac number, because 21000010133313 - 2⁴⁴ = 3407824088897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21000010133353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142393906 + ... + 142541307.

It is an arithmetic number, because the mean of its divisors is an integer number (1333496801520).

Almost surely, 2^{21000010133313} is an apocalyptic number.

It is an amenable number.

21000010133313 is a deficient number, since it is larger than the sum of its proper divisors (11003913103167).

21000010133313 is a wasteful number, since it uses less digits than its factorization.

21000010133313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284935669 (or 284935666 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 21000010133313 its reverse (31333101000012), we get a palindrome (52333111133325).

The spelling of 21000010133313 in words is "twenty-one trillion, ten million, one hundred thirty-three thousand, three hundred thirteen".