20231201131 has 2 divisors, whose sum is σ = 20231201132. Its totient is φ = 20231201130.

The previous prime is 20231201099. The next prime is 20231201141. The reversal of 20231201131 is 13110213202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20231201131 - 2⁵ = 20231201099 is a prime.

It is a super-2 number, since 2×20231201131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20231201141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115600565 + 10115600566.

It is an arithmetic number, because the mean of its divisors is an integer number (10115600566).

Almost surely, 2^20231201131 is an apocalyptic number.

20231201131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20231201131 is an equidigital number, since it uses as much as digits as its factorization.

20231201131 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20231201131 its reverse (13110213202), we get a palindrome (33341414333).

The spelling of 20231201131 in words is "twenty billion, two hundred thirty-one million, two hundred one thousand, one hundred thirty-one".