120311332513540 has 24 divisors (see below), whose sum is σ = 288747198032832. Its totient is φ = 41249599718880.

The previous prime is 120311332513517. The next prime is 120311332513583. The reversal of 120311332513540 is 45315233113021.

It is a junction number, because it is equal to n+sod(n) for n = 120311332513496 and 120311332513505.

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, 429683330266 + ... + 429683330545.

It is an arithmetic number, because the mean of its divisors is an integer number (12031133251368).

Almost surely, 2^{120311332513540} is an apocalyptic number.

120311332513540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120311332513540 is an abundant number, since it is smaller than the sum of its proper divisors (168435865519292).

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

120311332513540 is a wasteful number, since it uses less digits than its factorization.

120311332513540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859366660827 (or 859366660825 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 120311332513540 its reverse (45315233113021), we get a palindrome (165626565626561).

The spelling of 120311332513540 in words is "one hundred twenty trillion, three hundred eleven billion, three hundred thirty-two million, five hundred thirteen thousand, five hundred forty".