4242031431331 has 2 divisors, whose sum is σ = 4242031431332. Its totient is φ = 4242031431330.

The previous prime is 4242031431307. The next prime is 4242031431343. The reversal of 4242031431331 is 1331341302424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4242031431331 - 2⁵ = 4242031431299 is a prime.

It is a super-2 number, since 2×4242031431331² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4242031431293 and 4242031431302.

It is not a weakly prime, because it can be changed into another prime (4242031431731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121015715665 + 2121015715666.

It is an arithmetic number, because the mean of its divisors is an integer number (2121015715666).

Almost surely, 2^{4242031431331} is an apocalyptic number.

4242031431331 is a deficient number, since it is larger than the sum of its proper divisors (1).

4242031431331 is an equidigital number, since it uses as much as digits as its factorization.

4242031431331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 4242031431331 its reverse (1331341302424), we get a palindrome (5573372733755).

The spelling of 4242031431331 in words is "four trillion, two hundred forty-two billion, thirty-one million, four hundred thirty-one thousand, three hundred thirty-one".