21013124034353 has 8 divisors (see below), whose sum is σ = 22997116748736. Its totient is φ = 19041416105200.

The previous prime is 21013124034323. The next prime is 21013124034379. The reversal of 21013124034353 is 35343042131012.

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 21013124034353 - 2¹² = 21013124030257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21013124034323) 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, 3071192726 + ... + 3071199567.

It is an arithmetic number, because the mean of its divisors is an integer number (2874639593592).

Almost surely, 2^{21013124034353} is an apocalyptic number.

It is an amenable number.

21013124034353 is a deficient number, since it is larger than the sum of its proper divisors (1983992714383).

21013124034353 is a wasteful number, since it uses less digits than its factorization.

21013124034353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142392615.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 21013124034353 its reverse (35343042131012), we get a palindrome (56356166165365).

The spelling of 21013124034353 in words is "twenty-one trillion, thirteen billion, one hundred twenty-four million, thirty-four thousand, three hundred fifty-three".