21124121435053 has 8 divisors (see below), whose sum is σ = 25998918689408. Its totient is φ = 16713590585904.

The previous prime is 21124121435017. The next prime is 21124121435111. The reversal of 21124121435053 is 35053412142112.

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 21124121435053 - 2¹³ = 21124121426861 is a prime.

It is a super-2 number, since 2×21124121435053² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21124121415053) 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, 116066601201 + ... + 116066601382.

It is an arithmetic number, because the mean of its divisors is an integer number (3249864836176).

Almost surely, 2^{21124121435053} is an apocalyptic number.

It is an amenable number.

21124121435053 is a deficient number, since it is larger than the sum of its proper divisors (4874797254355).

21124121435053 is a wasteful number, since it uses less digits than its factorization.

21124121435053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232133202603.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 21124121435053 its reverse (35053412142112), we get a palindrome (56177533577165).

The spelling of 21124121435053 in words is "twenty-one trillion, one hundred twenty-four billion, one hundred twenty-one million, four hundred thirty-five thousand, fifty-three".