42012031323 has 16 divisors (see below), whose sum is σ = 56606570496. Its totient is φ = 27714201600.

The previous prime is 42012031319. The next prime is 42012031339. The reversal of 42012031323 is 32313021024.

42012031323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42012031323 - 2² = 42012031319 is a prime.

It is a super-3 number, since 3×42012031323³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42012031323.

It is not an unprimeable number, because it can be changed into a prime (42012031723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64011 + ... + 296852.

It is an arithmetic number, because the mean of its divisors is an integer number (3537910656).

Almost surely, 2^42012031323 is an apocalyptic number.

42012031323 is a deficient number, since it is larger than the sum of its proper divisors (14594539173).

42012031323 is a wasteful number, since it uses less digits than its factorization.

42012031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361274.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 42012031323 its reverse (32313021024), we get a palindrome (74325052347).

The spelling of 42012031323 in words is "forty-two billion, twelve million, thirty-one thousand, three hundred twenty-three".