240403122012 has 48 divisors (see below), whose sum is σ = 595966764960. Its totient is φ = 75280004352.

The previous prime is 240403121993. The next prime is 240403122059. The reversal of 240403122012 is 210221304042.

It is a super-2 number, since 2×240403122012² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240403122012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9322443 + ... + 9348194.

It is an arithmetic number, because the mean of its divisors is an integer number (12415974270).

Almost surely, 2^240403122012 is an apocalyptic number.

It is an amenable number.

240403122012 is an abundant number, since it is smaller than the sum of its proper divisors (355563642948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240403122012 is a wasteful number, since it uses less digits than its factorization.

240403122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18670710 (or 18670708 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 240403122012 its reverse (210221304042), we get a palindrome (450624426054).

The spelling of 240403122012 in words is "two hundred forty billion, four hundred three million, one hundred twenty-two thousand, twelve".