1021354144504 has 8 divisors (see below), whose sum is σ = 1915039020960. Its totient is φ = 510677072248.

The previous prime is 1021354144487. The next prime is 1021354144507. The reversal of 1021354144504 is 4054414531201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1021354144504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021354144507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63834634024 + ... + 63834634039.

It is an arithmetic number, because the mean of its divisors is an integer number (239379877620).

Almost surely, 2^{1021354144504} is an apocalyptic number.

It is an amenable number.

1021354144504 is a deficient number, since it is larger than the sum of its proper divisors (893684876456).

1021354144504 is a wasteful number, since it uses less digits than its factorization.

1021354144504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127669268069 (or 127669268065 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 1021354144504 its reverse (4054414531201), we get a palindrome (5075768675705).

The spelling of 1021354144504 in words is "one trillion, twenty-one billion, three hundred fifty-four million, one hundred forty-four thousand, five hundred four".