42313112420431 has 4 divisors (see below), whose sum is σ = 42313255713864. Its totient is φ = 42312969127000.

The previous prime is 42313112420429. The next prime is 42313112420461. The reversal of 42313112420431 is 13402421131324.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42313112420431 - 2¹ = 42313112420429 is a prime.

It is a super-2 number, since 2×42313112420431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42313112420393 and 42313112420402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42313112420461) 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, 71202865 + ... + 71794666.

It is an arithmetic number, because the mean of its divisors is an integer number (10578313928466).

Almost surely, 2^{42313112420431} is an apocalyptic number.

42313112420431 is a deficient number, since it is larger than the sum of its proper divisors (143293433).

42313112420431 is a wasteful number, since it uses less digits than its factorization.

42313112420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143293432.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 42313112420431 its reverse (13402421131324), we get a palindrome (55715533551755).

The spelling of 42313112420431 in words is "forty-two trillion, three hundred thirteen billion, one hundred twelve million, four hundred twenty thousand, four hundred thirty-one".