2023131022091 has 2 divisors, whose sum is σ = 2023131022092. Its totient is φ = 2023131022090.

The previous prime is 2023131022057. The next prime is 2023131022103. The reversal of 2023131022091 is 1902201313202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2023131022091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2023131022091.

It is not a weakly prime, because it can be changed into another prime (2023131022291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011565511045 + 1011565511046.

It is an arithmetic number, because the mean of its divisors is an integer number (1011565511046).

Almost surely, 2^{2023131022091} is an apocalyptic number.

2023131022091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2023131022091 is an equidigital number, since it uses as much as digits as its factorization.

2023131022091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 2023131022091 its reverse (1902201313202), we get a palindrome (3925332335293).

The spelling of 2023131022091 in words is "two trillion, twenty-three billion, one hundred thirty-one million, twenty-two thousand, ninety-one".