423111430031 has 2 divisors, whose sum is σ = 423111430032. Its totient is φ = 423111430030.

The previous prime is 423111430009. The next prime is 423111430043. The reversal of 423111430031 is 130034111324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423111430031 is a prime.

It is a super-2 number, since 2×423111430031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423111429979 and 423111430006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423111430061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211555715015 + 211555715016.

It is an arithmetic number, because the mean of its divisors is an integer number (211555715016).

Almost surely, 2^423111430031 is an apocalyptic number.

423111430031 is a deficient number, since it is larger than the sum of its proper divisors (1).

423111430031 is an equidigital number, since it uses as much as digits as its factorization.

423111430031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 423111430031 its reverse (130034111324), we get a palindrome (553145541355).

The spelling of 423111430031 in words is "four hundred twenty-three billion, one hundred eleven million, four hundred thirty thousand, thirty-one".