20030112313 has 2 divisors, whose sum is σ = 20030112314. Its totient is φ = 20030112312.

The previous prime is 20030112307. The next prime is 20030112329. The reversal of 20030112313 is 31321103002.

It is an a-pointer prime, because the next prime (20030112329) can be obtained adding 20030112313 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17497204729 + 2532907584 = 132277^2 + 50328^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20030112313 is a prime.

It is not a weakly prime, because it can be changed into another prime (20030112383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015056156 + 10015056157.

It is an arithmetic number, because the mean of its divisors is an integer number (10015056157).

Almost surely, 2^20030112313 is an apocalyptic number.

It is an amenable number.

20030112313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030112313 is an equidigital number, since it uses as much as digits as its factorization.

20030112313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20030112313 its reverse (31321103002), we get a palindrome (51351215315).

The spelling of 20030112313 in words is "twenty billion, thirty million, one hundred twelve thousand, three hundred thirteen".