20120214321 has 16 divisors (see below), whose sum is σ = 31103713920. Its totient is φ = 12830281200.

The previous prime is 20120214311. The next prime is 20120214337. The reversal of 20120214321 is 12341202102.

It is a happy number.

It is not a de Polignac number, because 20120214321 - 2¹⁵ = 20120181553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20120214294 and 20120214303.

It is not an unprimeable number, because it can be changed into a prime (20120214311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16199230 + ... + 16200471.

It is an arithmetic number, because the mean of its divisors is an integer number (1943982120).

Almost surely, 2^20120214321 is an apocalyptic number.

It is an amenable number.

20120214321 is a deficient number, since it is larger than the sum of its proper divisors (10983499599).

20120214321 is a wasteful number, since it uses less digits than its factorization.

20120214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32399733 (or 32399727 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20120214321 its reverse (12341202102), we get a palindrome (32461416423).

The spelling of 20120214321 in words is "twenty billion, one hundred twenty million, two hundred fourteen thousand, three hundred twenty-one".