21113342024501 has 8 divisors (see below), whose sum is σ = 21208173444864. Its totient is φ = 21018511968480.

The previous prime is 21113342024491. The next prime is 21113342024507. The reversal of 21113342024501 is 10542024331112.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21113342024501 is a prime.

It is a super-2 number, since 2×21113342024501² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113342024507) 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, 43030766 + ... + 43518656.

It is an arithmetic number, because the mean of its divisors is an integer number (2651021680608).

Almost surely, 2^{21113342024501} is an apocalyptic number.

It is an amenable number.

21113342024501 is a deficient number, since it is larger than the sum of its proper divisors (94831420363).

21113342024501 is a wasteful number, since it uses less digits than its factorization.

21113342024501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682171.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 21113342024501 its reverse (10542024331112), we get a palindrome (31655366355613).

The spelling of 21113342024501 in words is "twenty-one trillion, one hundred thirteen billion, three hundred forty-two million, twenty-four thousand, five hundred one".