2031143110421 has 2 divisors, whose sum is σ = 2031143110422. Its totient is φ = 2031143110420.

The previous prime is 2031143110333. The next prime is 2031143110463. The reversal of 2031143110421 is 1240113411302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1956750547921 + 74392562500 = 1398839^2 + 272750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031143110421 - 2¹⁰ = 2031143109397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031143110481) 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, 1015571555210 + 1015571555211.

It is an arithmetic number, because the mean of its divisors is an integer number (1015571555211).

Almost surely, 2^{2031143110421} is an apocalyptic number.

It is an amenable number.

2031143110421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031143110421 is an equidigital number, since it uses as much as digits as its factorization.

2031143110421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 2031143110421 its reverse (1240113411302), we get a palindrome (3271256521723).

The spelling of 2031143110421 in words is "two trillion, thirty-one billion, one hundred forty-three million, one hundred ten thousand, four hundred twenty-one".