420434403313031 has 2 divisors, whose sum is σ = 420434403313032. Its totient is φ = 420434403313030.

The previous prime is 420434403313007. The next prime is 420434403313117. The reversal of 420434403313031 is 130313304434024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420434403313031 - 2¹⁴ = 420434403296647 is a prime.

It is a super-2 number, since 2×420434403313031² (a number of 30 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 = 420434403312982 and 420434403313000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420434403213031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210217201656515 + 210217201656516.

It is an arithmetic number, because the mean of its divisors is an integer number (210217201656516).

Almost surely, 2^{420434403313031} is an apocalyptic number.

420434403313031 is a deficient number, since it is larger than the sum of its proper divisors (1).

420434403313031 is an equidigital number, since it uses as much as digits as its factorization.

420434403313031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 420434403313031 its reverse (130313304434024), we get a palindrome (550747707747055).

The spelling of 420434403313031 in words is "four hundred twenty trillion, four hundred thirty-four billion, four hundred three million, three hundred thirteen thousand, thirty-one".