4405123432531 has 2 divisors, whose sum is σ = 4405123432532. Its totient is φ = 4405123432530.

The previous prime is 4405123432487. The next prime is 4405123432561. The reversal of 4405123432531 is 1352343215044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4405123432531 - 2¹⁵ = 4405123399763 is a prime.

It is a super-2 number, since 2×4405123432531² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4405123432561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202561716265 + 2202561716266.

It is an arithmetic number, because the mean of its divisors is an integer number (2202561716266).

Almost surely, 2^{4405123432531} is an apocalyptic number.

4405123432531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4405123432531 is an equidigital number, since it uses as much as digits as its factorization.

4405123432531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 4405123432531 its reverse (1352343215044), we get a palindrome (5757466647575).

The spelling of 4405123432531 in words is "four trillion, four hundred five billion, one hundred twenty-three million, four hundred thirty-two thousand, five hundred thirty-one".