423142401331 has 4 divisors (see below), whose sum is σ = 455691816832. Its totient is φ = 390592985832.

The previous prime is 423142401317. The next prime is 423142401349. The reversal of 423142401331 is 133104241324.

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 423142401331 - 2⁵ = 423142401299 is a prime.

It is a super-2 number, since 2×423142401331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423142401331.

It is not an unprimeable number, because it can be changed into a prime (423142401361) 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, 16274707731 + ... + 16274707756.

It is an arithmetic number, because the mean of its divisors is an integer number (113922954208).

Almost surely, 2^423142401331 is an apocalyptic number.

423142401331 is a deficient number, since it is larger than the sum of its proper divisors (32549415501).

423142401331 is a wasteful number, since it uses less digits than its factorization.

423142401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32549415500.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 423142401331 its reverse (133104241324), we get a palindrome (556246642655).

The spelling of 423142401331 in words is "four hundred twenty-three billion, one hundred forty-two million, four hundred one thousand, three hundred thirty-one".