42321423031 has 8 divisors (see below), whose sum is σ = 42486662624. Its totient is φ = 42156495360.

The previous prime is 42321422963. The next prime is 42321423047. The reversal of 42321423031 is 13032412324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42321423031 - 2³⁵ = 7961684663 is a prime.

It is a super-2 number, since 2×42321423031² (a number of 22 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 = 42321422987 and 42321423005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321421031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195775 + ... + 350671.

It is an arithmetic number, because the mean of its divisors is an integer number (5310832828).

Almost surely, 2^42321423031 is an apocalyptic number.

42321423031 is a deficient number, since it is larger than the sum of its proper divisors (165239593).

42321423031 is a wasteful number, since it uses less digits than its factorization.

42321423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155961.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 42321423031 its reverse (13032412324), we get a palindrome (55353835355).

The spelling of 42321423031 in words is "forty-two billion, three hundred twenty-one million, four hundred twenty-three thousand, thirty-one".