20210112313 has 2 divisors, whose sum is σ = 20210112314. Its totient is φ = 20210112312.

The previous prime is 20210112277. The next prime is 20210112331. The reversal of 20210112313 is 31321101202.

Together with next prime (20210112331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19557463104 + 652649209 = 139848^2 + 25547^2 .

It is a cyclic number.

It is not a de Polignac number, because 20210112313 - 2¹³ = 20210104121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20210110313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105056156 + 10105056157.

It is an arithmetic number, because the mean of its divisors is an integer number (10105056157).

Almost surely, 2^20210112313 is an apocalyptic number.

It is an amenable number.

20210112313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210112313 is an equidigital number, since it uses as much as digits as its factorization.

20210112313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20210112313 its reverse (31321101202), we get a palindrome (51531213515).

The spelling of 20210112313 in words is "twenty billion, two hundred ten million, one hundred twelve thousand, three hundred thirteen".