42240132331 has 8 divisors (see below), whose sum is σ = 42752903760. Its totient is φ = 41727452832.

The previous prime is 42240132317. The next prime is 42240132349. The reversal of 42240132331 is 13323104224.

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 42240132331 - 2¹³ = 42240124139 is a prime.

It is a super-2 number, since 2×42240132331² (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 = 42240132296 and 42240132305.

It is not an unprimeable number, because it can be changed into a prime (42240132731) 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, 1544605 + ... + 1571713.

It is an arithmetic number, because the mean of its divisors is an integer number (5344112970).

Almost surely, 2^42240132331 is an apocalyptic number.

42240132331 is a deficient number, since it is larger than the sum of its proper divisors (512771429).

42240132331 is a wasteful number, since it uses less digits than its factorization.

42240132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45965.

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

Adding to 42240132331 its reverse (13323104224), we get a palindrome (55563236555).

The spelling of 42240132331 in words is "forty-two billion, two hundred forty million, one hundred thirty-two thousand, three hundred thirty-one".