42131451223 has 2 divisors, whose sum is σ = 42131451224. Its totient is φ = 42131451222.

The previous prime is 42131451179. The next prime is 42131451247. The reversal of 42131451223 is 32215413124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42131451223 - 2¹⁷ = 42131320151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42131451191 and 42131451200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42131451253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21065725611 + 21065725612.

It is an arithmetic number, because the mean of its divisors is an integer number (21065725612).

Almost surely, 2^42131451223 is an apocalyptic number.

42131451223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42131451223 is an equidigital number, since it uses as much as digits as its factorization.

42131451223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

Adding to 42131451223 its reverse (32215413124), we get a palindrome (74346864347).

The spelling of 42131451223 in words is "forty-two billion, one hundred thirty-one million, four hundred fifty-one thousand, two hundred twenty-three".