42400330331 has 2 divisors, whose sum is σ = 42400330332. Its totient is φ = 42400330330.

The previous prime is 42400330319. The next prime is 42400330337. The reversal of 42400330331 is 13303300424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42400330331 - 2⁶ = 42400330267 is a prime.

It is a super-2 number, since 2×42400330331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42400330297 and 42400330306.

It is not a weakly prime, because it can be changed into another prime (42400330337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21200165165 + 21200165166.

It is an arithmetic number, because the mean of its divisors is an integer number (21200165166).

Almost surely, 2^42400330331 is an apocalyptic number.

42400330331 is a deficient number, since it is larger than the sum of its proper divisors (1).

42400330331 is an equidigital number, since it uses as much as digits as its factorization.

42400330331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 42400330331 its reverse (13303300424), we get a palindrome (55703630755).

The spelling of 42400330331 in words is "forty-two billion, four hundred million, three hundred thirty thousand, three hundred thirty-one".