42012131223 has 8 divisors (see below), whose sum is σ = 58451660928. Its totient is φ = 26790344504.

The previous prime is 42012131221. The next prime is 42012131233. The reversal of 42012131223 is 32213121024.

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 42012131223 - 2¹ = 42012131221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42012131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42012131221) 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, 304435665 + ... + 304435802.

It is an arithmetic number, because the mean of its divisors is an integer number (7306457616).

Almost surely, 2^42012131223 is an apocalyptic number.

42012131223 is a deficient number, since it is larger than the sum of its proper divisors (16439529705).

42012131223 is a wasteful number, since it uses less digits than its factorization.

42012131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608871493.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 42012131223 its reverse (32213121024), we get a palindrome (74225252247).

The spelling of 42012131223 in words is "forty-two billion, twelve million, one hundred thirty-one thousand, two hundred twenty-three".