42405103511431 has 4 divisors (see below), whose sum is σ = 42405116758200. Its totient is φ = 42405090264664.

The previous prime is 42405103511429. The next prime is 42405103511467. The reversal of 42405103511431 is 13411530150424.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42405103511431 - 2¹ = 42405103511429 is a prime.

It is a super-2 number, since 2×42405103511431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42405103511471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496685 + ... + 9330073.

It is an arithmetic number, because the mean of its divisors is an integer number (10601279189550).

Almost surely, 2^{42405103511431} is an apocalyptic number.

42405103511431 is a deficient number, since it is larger than the sum of its proper divisors (13246769).

42405103511431 is an equidigital number, since it uses as much as digits as its factorization.

42405103511431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13246768.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 42405103511431 its reverse (13411530150424), we get a palindrome (55816633661855).

The spelling of 42405103511431 in words is "forty-two trillion, four hundred five billion, one hundred three million, five hundred eleven thousand, four hundred thirty-one".