21063532453302 has 16 divisors (see below), whose sum is σ = 42127809499440. Its totient is φ = 7021053385632.

The previous prime is 21063532453279. The next prime is 21063532453307. The reversal of 21063532453302 is 20335423536012.

It is a super-2 number, since 2×21063532453302² (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 (21063532453307) 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, 30656613 + ... + 31336160.

It is an arithmetic number, because the mean of its divisors is an integer number (2632988093715).

Almost surely, 2^{21063532453302} is an apocalyptic number.

21063532453302 is an abundant number, since it is smaller than the sum of its proper divisors (21064277046138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21063532453302 is a wasteful number, since it uses less digits than its factorization.

21063532453302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62049407.

The product of its (nonzero) digits is 388800, while the sum is 39.

Adding to 21063532453302 its reverse (20335423536012), we get a palindrome (41398955989314).

The spelling of 21063532453302 in words is "twenty-one trillion, sixty-three billion, five hundred thirty-two million, four hundred fifty-three thousand, three hundred two".