2131543204031 has 2 divisors, whose sum is σ = 2131543204032. Its totient is φ = 2131543204030.

The previous prime is 2131543204003. The next prime is 2131543204061. The reversal of 2131543204031 is 1304023451312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131543204031 - 2¹⁸ = 2131542941887 is a prime.

It is a super-2 number, since 2×2131543204031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131543203985 and 2131543204003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131543204061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065771602015 + 1065771602016.

It is an arithmetic number, because the mean of its divisors is an integer number (1065771602016).

Almost surely, 2^{2131543204031} is an apocalyptic number.

2131543204031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131543204031 is an equidigital number, since it uses as much as digits as its factorization.

2131543204031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 2131543204031 its reverse (1304023451312), we get a palindrome (3435566655343).

The spelling of 2131543204031 in words is "two trillion, one hundred thirty-one billion, five hundred forty-three million, two hundred four thousand, thirty-one".