120013303440 has 40 divisors (see below), whose sum is σ = 372041241408. Its totient is φ = 32003547520.

The previous prime is 120013303379. The next prime is 120013303457. The reversal of 120013303440 is 44303310021.

It is a tau number, because it is divible by the number of its divisors (40).

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, 250027476 + ... + 250027955.

Almost surely, 2^120013303440 is an apocalyptic number.

120013303440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120013303440 is an abundant number, since it is smaller than the sum of its proper divisors (252027937968).

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

120013303440 is a wasteful number, since it uses less digits than its factorization.

120013303440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500055447 (or 500055441 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 120013303440 its reverse (44303310021), we get a palindrome (164316613461).

The spelling of 120013303440 in words is "one hundred twenty billion, thirteen million, three hundred three thousand, four hundred forty".