42323223031 has 2 divisors, whose sum is σ = 42323223032. Its totient is φ = 42323223030.

The previous prime is 42323223011. The next prime is 42323223071. The reversal of 42323223031 is 13032232324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42323223031 - 2⁵ = 42323222999 is a prime.

It is a super-2 number, since 2×42323223031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42323222987 and 42323223005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42323223011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21161611515 + 21161611516.

It is an arithmetic number, because the mean of its divisors is an integer number (21161611516).

Almost surely, 2^42323223031 is an apocalyptic number.

42323223031 is a deficient number, since it is larger than the sum of its proper divisors (1).

42323223031 is an equidigital number, since it uses as much as digits as its factorization.

42323223031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 42323223031 its reverse (13032232324), we get a palindrome (55355455355).

The spelling of 42323223031 in words is "forty-two billion, three hundred twenty-three million, two hundred twenty-three thousand, thirty-one".