1021412320004 has 12 divisors (see below), whose sum is σ = 1792775632284. Its totient is φ = 509190710784.

The previous prime is 1021412320001. The next prime is 1021412320013. The reversal of 1021412320004 is 4000232141201.

It can be written as a sum of positive squares in 2 ways, for example, as 266511997504 + 754900322500 = 516248^2 + 868850^2 .

It is not an unprimeable number, because it can be changed into a prime (1021412320001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378860789 + ... + 378863484.

It is an arithmetic number, because the mean of its divisors is an integer number (149397969357).

Almost surely, 2^{1021412320004} is an apocalyptic number.

It is an amenable number.

1021412320004 is a deficient number, since it is larger than the sum of its proper divisors (771363312280).

1021412320004 is a wasteful number, since it uses less digits than its factorization.

1021412320004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757724614 (or 757724612 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1021412320004 its reverse (4000232141201), we get a palindrome (5021644461205).

The spelling of 1021412320004 in words is "one trillion, twenty-one billion, four hundred twelve million, three hundred twenty thousand, four".