42330331031 has 2 divisors, whose sum is σ = 42330331032. Its totient is φ = 42330331030.

The previous prime is 42330331009. The next prime is 42330331091. The reversal of 42330331031 is 13013303324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42330331031 - 2⁶ = 42330330967 is a prime.

It is a super-2 number, since 2×42330331031² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 42330330988 and 42330331006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42330331091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21165165515 + 21165165516.

It is an arithmetic number, because the mean of its divisors is an integer number (21165165516).

Almost surely, 2^42330331031 is an apocalyptic number.

42330331031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42330331031 is an equidigital number, since it uses as much as digits as its factorization.

42330331031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 42330331031 its reverse (13013303324), we get a palindrome (55343634355).

The spelling of 42330331031 in words is "forty-two billion, three hundred thirty million, three hundred thirty-one thousand, thirty-one".