20232131011 has 2 divisors, whose sum is σ = 20232131012. Its totient is φ = 20232131010.

The previous prime is 20232131009. The next prime is 20232131021. The reversal of 20232131011 is 11013123202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20232131011 - 2¹ = 20232131009 is a prime.

Together with 20232131009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20232131021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116065505 + 10116065506.

It is an arithmetic number, because the mean of its divisors is an integer number (10116065506).

Almost surely, 2^20232131011 is an apocalyptic number.

20232131011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232131011 is an equidigital number, since it uses as much as digits as its factorization.

20232131011 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 20232131011 its reverse (11013123202), we get a palindrome (31245254213).

It can be divided in two parts, 202321 and 31011, that added together give a palindrome (233332).

The spelling of 20232131011 in words is "twenty billion, two hundred thirty-two million, one hundred thirty-one thousand, eleven".