1021365936240 has 80 divisors (see below), whose sum is σ = 3409790905248. Its totient is φ = 251413152768.

The previous prime is 1021365936181. The next prime is 1021365936257. The reversal of 1021365936240 is 426395631201.

1021365936240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1021365936240² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021365936192 and 1021365936201.

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, 163677319 + ... + 163683558.

Almost surely, 2^{1021365936240} is an apocalyptic number.

1021365936240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021365936240 is an abundant number, since it is smaller than the sum of its proper divisors (2388424969008).

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

1021365936240 is a wasteful number, since it uses less digits than its factorization.

1021365936240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327360906 (or 327360900 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 1021365936240 in words is "one trillion, twenty-one billion, three hundred sixty-five million, nine hundred thirty-six thousand, two hundred forty".