420411312331 has 2 divisors, whose sum is σ = 420411312332. Its totient is φ = 420411312330.

The previous prime is 420411312323. The next prime is 420411312371. The reversal of 420411312331 is 133213114024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420411312331 - 2³ = 420411312323 is a prime.

It is a super-2 number, since 2×420411312331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420411312296 and 420411312305.

It is not a weakly prime, because it can be changed into another prime (420411312301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210205656165 + 210205656166.

It is an arithmetic number, because the mean of its divisors is an integer number (210205656166).

Almost surely, 2^420411312331 is an apocalyptic number.

420411312331 is a deficient number, since it is larger than the sum of its proper divisors (1).

420411312331 is an equidigital number, since it uses as much as digits as its factorization.

420411312331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 420411312331 its reverse (133213114024), we get a palindrome (553624426355).

The spelling of 420411312331 in words is "four hundred twenty billion, four hundred eleven million, three hundred twelve thousand, three hundred thirty-one".