12313620 has 120 divisors (see below), whose sum is σ = 42200928. Its totient is φ = 2980800.

The previous prime is 12313619. The next prime is 12313633. The reversal of 12313620 is 2631321.

12313620 is a `hidden beast` number, since 12 + 31 + 3 + 620 = 666.

12313620 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12313593 and 12313602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17475 + ... + 18165.

Almost surely, 2^12313620 is an apocalyptic number.

12313620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12313620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21100464).

12313620 is an abundant number, since it is smaller than the sum of its proper divisors (29887308).

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

12313620 is a wasteful number, since it uses less digits than its factorization.

12313620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 12313620 is about 3509.0768016674. The cubic root of 12313620 is about 230.9201950670.

Adding to 12313620 its reverse (2631321), we get a palindrome (14944941).

It can be divided in two parts, 1231 and 3620, that added together give a triangular number (4851 = T₉₈).

The spelling of 12313620 in words is "twelve million, three hundred thirteen thousand, six hundred twenty".