1021345505504 has 48 divisors (see below), whose sum is σ = 2018501629200. Its totient is φ = 508712392704.

The previous prime is 1021345505503. The next prime is 1021345505507. The reversal of 1021345505504 is 4055055431201.

It is a super-2 number, since 2×1021345505504² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021345505501) 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, 15070607 + ... + 15138225.

It is an arithmetic number, because the mean of its divisors is an integer number (42052117275).

Almost surely, 2^{1021345505504} is an apocalyptic number.

It is an amenable number.

1021345505504 is a deficient number, since it is larger than the sum of its proper divisors (997156123696).

1021345505504 is a wasteful number, since it uses less digits than its factorization.

1021345505504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69435 (or 69427 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 1021345505504 in words is "one trillion, twenty-one billion, three hundred forty-five million, five hundred five thousand, five hundred four".