1240202043312 has 80 divisors (see below), whose sum is σ = 3278633487360. Its totient is φ = 403753464576.

The previous prime is 1240202043281. The next prime is 1240202043331. The reversal of 1240202043312 is 2133402020421.

It is a happy number.

It is a super-2 number, since 2×1240202043312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44170014 + ... + 44198082.

It is an arithmetic number, because the mean of its divisors is an integer number (40982918592).

Almost surely, 2^{1240202043312} is an apocalyptic number.

1240202043312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240202043312 is an abundant number, since it is smaller than the sum of its proper divisors (2038431444048).

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

1240202043312 is a wasteful number, since it uses less digits than its factorization.

1240202043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49530 (or 49524 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1240202043312 its reverse (2133402020421), we get a palindrome (3373604063733).

The spelling of 1240202043312 in words is "one trillion, two hundred forty billion, two hundred two million, forty-three thousand, three hundred twelve".