42347243031 has 16 divisors (see below), whose sum is σ = 57103865856. Its totient is φ = 27912854016.

The previous prime is 42347243023. The next prime is 42347243033. The reversal of 42347243031 is 13034274324.

It is a happy number.

It is not a de Polignac number, because 42347243031 - 2³ = 42347243023 is a prime.

It is a super-2 number, since 2×42347243031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42347242983 and 42347243001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42347243033) 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 in 15 ways as a sum of consecutive naturals, for example, 129975 + ... + 318728.

It is an arithmetic number, because the mean of its divisors is an integer number (3568991616).

Almost surely, 2^42347243031 is an apocalyptic number.

42347243031 is a deficient number, since it is larger than the sum of its proper divisors (14756622825).

42347243031 is a wasteful number, since it uses less digits than its factorization.

42347243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449062.

The product of its (nonzero) digits is 48384, while the sum is 33.

The spelling of 42347243031 in words is "forty-two billion, three hundred forty-seven million, two hundred forty-three thousand, thirty-one".