120313820 has 24 divisors (see below), whose sum is σ = 275628528. Its totient is φ = 43750400.

The previous prime is 120313819. The next prime is 120313829. The reversal of 120313820 is 28313021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 120313792 and 120313801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120313829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273221 + ... + 273660.

It is an arithmetic number, because the mean of its divisors is an integer number (11484522).

Almost surely, 2^120313820 is an apocalyptic number.

120313820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120313820 is an abundant number, since it is smaller than the sum of its proper divisors (155314708).

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

120313820 is a wasteful number, since it uses less digits than its factorization.

120313820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546901 (or 546899 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 120313820 is about 10968.7656552595. The cubic root of 120313820 is about 493.6720109690.

Adding to 120313820 its reverse (28313021), we get a palindrome (148626841).

It can be divided in two parts, 12031 and 3820, that added together give a palindrome (15851).

The spelling of 120313820 in words is "one hundred twenty million, three hundred thirteen thousand, eight hundred twenty".