120323103440 has 80 divisors (see below), whose sum is σ = 299034360576. Its totient is φ = 44913792000.

The previous prime is 120323103427. The next prime is 120323103449. The reversal of 120323103440 is 44301323021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120323103449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722036 + ... + 872915.

Almost surely, 2^120323103440 is an apocalyptic number.

120323103440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120323103440 is an abundant number, since it is smaller than the sum of its proper divisors (178711257136).

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

120323103440 is a wasteful number, since it uses less digits than its factorization.

120323103440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595028 (or 1595022 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 120323103440 its reverse (44301323021), we get a palindrome (164624426461).

The spelling of 120323103440 in words is "one hundred twenty billion, three hundred twenty-three million, one hundred three thousand, four hundred forty".