1021342104452 has 12 divisors (see below), whose sum is σ = 1828914931536. Its totient is φ = 498794981160.

The previous prime is 1021342104443. The next prime is 1021342104467. The reversal of 1021342104452 is 2544012431201.

It is a happy number.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2969017574 + ... + 2969017917.

It is an arithmetic number, because the mean of its divisors is an integer number (152409577628).

Almost surely, 2^{1021342104452} is an apocalyptic number.

It is an amenable number.

1021342104452 is a deficient number, since it is larger than the sum of its proper divisors (807572827084).

1021342104452 is a wasteful number, since it uses less digits than its factorization.

1021342104452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938035538 (or 5938035536 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 1021342104452 its reverse (2544012431201), we get a palindrome (3565354535653).

The spelling of 1021342104452 in words is "one trillion, twenty-one billion, three hundred forty-two million, one hundred four thousand, four hundred fifty-two".