120031400320440 has 128 divisors (see below), whose sum is σ = 411796206581760. Its totient is φ = 27418416850944.

The previous prime is 120031400320427. The next prime is 120031400320441. The reversal of 120031400320440 is 44023004130021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 120031400320440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120031400320441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43804369 + ... + 46463808.

It is an arithmetic number, because the mean of its divisors is an integer number (3217157863920).

Almost surely, 2^{120031400320440} is an apocalyptic number.

120031400320440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120031400320440 is an abundant number, since it is smaller than the sum of its proper divisors (291764806261320).

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

120031400320440 is a wasteful number, since it uses less digits than its factorization.

120031400320440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90269781 (or 90269777 counting only the distinct ones).

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

Adding to 120031400320440 its reverse (44023004130021), we get a palindrome (164054404450461).

The spelling of 120031400320440 in words is "one hundred twenty trillion, thirty-one billion, four hundred million, three hundred twenty thousand, four hundred forty".