20121323010313 has 16 divisors (see below), whose sum is σ = 23199812737920. Its totient is φ = 17093843778816.

The previous prime is 20121323010311. The next prime is 20121323010323. The reversal of 20121323010313 is 31301032312102.

It is not a de Polignac number, because 20121323010313 - 2¹ = 20121323010311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20121323010311) 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, 39032106 + ... + 39544252.

It is an arithmetic number, because the mean of its divisors is an integer number (1449988296120).

Almost surely, 2^{20121323010313} is an apocalyptic number.

It is an amenable number.

20121323010313 is a deficient number, since it is larger than the sum of its proper divisors (3078489727607).

20121323010313 is a wasteful number, since it uses less digits than its factorization.

20121323010313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561936.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20121323010313 its reverse (31301032312102), we get a palindrome (51422355322415).

The spelling of 20121323010313 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty-three million, ten thousand, three hundred thirteen".