40123043012 has 24 divisors (see below), whose sum is σ = 76466136600. Its totient is φ = 18310254336.

The previous prime is 40123042997. The next prime is 40123043027. The reversal of 40123043012 is 21034032104.

It is an interprime number because it is at equal distance from previous prime (40123042997) and next prime (40123043027).

It can be written as a sum of positive squares in 4 ways, for example, as 264517696 + 39858525316 = 16264^2 + 199646^2 .

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, 4330187 + ... + 4339442.

It is an arithmetic number, because the mean of its divisors is an integer number (3186089025).

Almost surely, 2^40123043012 is an apocalyptic number.

It is an amenable number.

40123043012 is a deficient number, since it is larger than the sum of its proper divisors (36343093588).

40123043012 is a wasteful number, since it uses less digits than its factorization.

40123043012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8669735 (or 8669733 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40123043012 its reverse (21034032104), we get a palindrome (61157075116).

The spelling of 40123043012 in words is "forty billion, one hundred twenty-three million, forty-three thousand, twelve".