423040240142 has 8 divisors (see below), whose sum is σ = 683372695656. Its totient is φ = 195249341592.

The previous prime is 423040240121. The next prime is 423040240213. The reversal of 423040240142 is 241042040324.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 16270778467 = 423040240142 / (4 + 2 + 3 + 0 + 4 + 0 + 2 + 4 + 0 + 1 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8135389208 + ... + 8135389259.

It is an arithmetic number, because the mean of its divisors is an integer number (85421586957).

Almost surely, 2^423040240142 is an apocalyptic number.

423040240142 is a deficient number, since it is larger than the sum of its proper divisors (260332455514).

423040240142 is a wasteful number, since it uses less digits than its factorization.

423040240142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16270778482.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 423040240142 its reverse (241042040324), we get a palindrome (664082280466).

The spelling of 423040240142 in words is "four hundred twenty-three billion, forty million, two hundred forty thousand, one hundred forty-two".