21365035451132 has 48 divisors (see below), whose sum is σ = 38673428075520. Its totient is φ = 10316908224000.

The previous prime is 21365035451129. The next prime is 21365035451143. The reversal of 21365035451132 is 23115453056312.

It is a self number, because there is not a number n which added to its sum of digits gives 21365035451132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120982763 + ... + 121159229.

It is an arithmetic number, because the mean of its divisors is an integer number (805696418240).

Almost surely, 2^{21365035451132} is an apocalyptic number.

It is an amenable number.

21365035451132 is a deficient number, since it is larger than the sum of its proper divisors (17308392624388).

21365035451132 is a wasteful number, since it uses less digits than its factorization.

21365035451132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178482 (or 178480 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 21365035451132 in words is "twenty-one trillion, three hundred sixty-five billion, thirty-five million, four hundred fifty-one thousand, one hundred thirty-two".