2123131142311 has 2 divisors, whose sum is σ = 2123131142312. Its totient is φ = 2123131142310.

The previous prime is 2123131142303. The next prime is 2123131142317. The reversal of 2123131142311 is 1132411313212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2123131142311 - 2³ = 2123131142303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123131142317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061565571155 + 1061565571156.

It is an arithmetic number, because the mean of its divisors is an integer number (1061565571156).

Almost surely, 2^{2123131142311} is an apocalyptic number.

2123131142311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123131142311 is an equidigital number, since it uses as much as digits as its factorization.

2123131142311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

Adding to 2123131142311 its reverse (1132411313212), we get a palindrome (3255542455523).

The spelling of 2123131142311 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-one million, one hundred forty-two thousand, three hundred eleven".