20412310321 has 8 divisors (see below), whose sum is σ = 21991919040. Its totient is φ = 18834048912.

The previous prime is 20412310291. The next prime is 20412310339. The reversal of 20412310321 is 12301321402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20412310321 - 2¹⁹ = 20411786033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20412310381) 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, 305245 + ... + 366058.

It is an arithmetic number, because the mean of its divisors is an integer number (2748989880).

Almost surely, 2^20412310321 is an apocalyptic number.

It is an amenable number.

20412310321 is a deficient number, since it is larger than the sum of its proper divisors (1579608719).

20412310321 is a wasteful number, since it uses less digits than its factorization.

20412310321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673655.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20412310321 its reverse (12301321402), we get a palindrome (32713631723).

The spelling of 20412310321 in words is "twenty billion, four hundred twelve million, three hundred ten thousand, three hundred twenty-one".