42623403131 has 2 divisors, whose sum is σ = 42623403132. Its totient is φ = 42623403130.

The previous prime is 42623403103. The next prime is 42623403139. The reversal of 42623403131 is 13130432624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42623403131 is a prime.

It is a super-2 number, since 2×42623403131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42623403094 and 42623403103.

It is not a weakly prime, because it can be changed into another prime (42623403139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21311701565 + 21311701566.

It is an arithmetic number, because the mean of its divisors is an integer number (21311701566).

Almost surely, 2^42623403131 is an apocalyptic number.

42623403131 is a deficient number, since it is larger than the sum of its proper divisors (1).

42623403131 is an equidigital number, since it uses as much as digits as its factorization.

42623403131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 42623403131 its reverse (13130432624), we get a palindrome (55753835755).

The spelling of 42623403131 in words is "forty-two billion, six hundred twenty-three million, four hundred three thousand, one hundred thirty-one".