40042124312 has 32 divisors (see below), whose sum is σ = 77141939520. Its totient is φ = 19471415040.

The previous prime is 40042124279. The next prime is 40042124329. The reversal of 40042124312 is 21342124004.

It is a super-2 number, since 2×40042124312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675137 + ... + 732047.

It is an arithmetic number, because the mean of its divisors is an integer number (2410685610).

Almost surely, 2^40042124312 is an apocalyptic number.

It is an amenable number.

40042124312 is a deficient number, since it is larger than the sum of its proper divisors (37099815208).

40042124312 is a wasteful number, since it uses less digits than its factorization.

40042124312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59331 (or 59327 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40042124312 its reverse (21342124004), we get a palindrome (61384248316).

The spelling of 40042124312 in words is "forty billion, forty-two million, one hundred twenty-four thousand, three hundred twelve".