20231201513 has 2 divisors, whose sum is σ = 20231201514. Its totient is φ = 20231201512.

The previous prime is 20231201491. The next prime is 20231201567. The reversal of 20231201513 is 31510213202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20194683664 + 36517849 = 142108^2 + 6043^2 .

It is a cyclic number.

It is not a de Polignac number, because 20231201513 - 2⁶ = 20231201449 is a prime.

It is a super-2 number, since 2×20231201513² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20231201413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115600756 + 10115600757.

It is an arithmetic number, because the mean of its divisors is an integer number (10115600757).

Almost surely, 2^20231201513 is an apocalyptic number.

It is an amenable number.

20231201513 is a deficient number, since it is larger than the sum of its proper divisors (1).

20231201513 is an equidigital number, since it uses as much as digits as its factorization.

20231201513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 20231201513 its reverse (31510213202), we get a palindrome (51741414715).

The spelling of 20231201513 in words is "twenty billion, two hundred thirty-one million, two hundred one thousand, five hundred thirteen".