412021500000321 has 4 divisors (see below), whose sum is σ = 549362000000432. Its totient is φ = 274681000000212.

The previous prime is 412021500000317. The next prime is 412021500000353. The reversal of 412021500000321 is 123000005120214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 412021500000321 - 2² = 412021500000317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (412021500000311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68670250000051 + ... + 68670250000056.

It is an arithmetic number, because the mean of its divisors is an integer number (137340500000108).

Almost surely, 2^{412021500000321} is an apocalyptic number.

It is an amenable number.

412021500000321 is a deficient number, since it is larger than the sum of its proper divisors (137340500000111).

412021500000321 is a wasteful number, since it uses less digits than its factorization.

412021500000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137340500000110.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 412021500000321 its reverse (123000005120214), we get a palindrome (535021505120535).

The spelling of 412021500000321 in words is "four hundred twelve trillion, twenty-one billion, five hundred million, three hundred twenty-one", and thus it is an aban number.