20121320302 has 16 divisors (see below), whose sum is σ = 31775763600. Its totient is φ = 9529574400.

The previous prime is 20121320273. The next prime is 20121320333. The reversal of 20121320302 is 20302312102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207552 + ... + 288652.

It is an arithmetic number, because the mean of its divisors is an integer number (1985985225).

Almost surely, 2^20121320302 is an apocalyptic number.

20121320302 is a deficient number, since it is larger than the sum of its proper divisors (11654443298).

20121320302 is a wasteful number, since it uses less digits than its factorization.

20121320302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87651.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20121320302 its reverse (20302312102), we get a palindrome (40423632404).

The spelling of 20121320302 in words is "twenty billion, one hundred twenty-one million, three hundred twenty thousand, three hundred two".