1210012320 has 192 divisors, whose sum is σ = 4201061760. Its totient is φ = 290304000.

The previous prime is 1210012319. The next prime is 1210012333. The reversal of 1210012320 is 232100121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210012296 and 1210012305.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532146 + ... + 534414.

It is an arithmetic number, because the mean of its divisors is an integer number (21880530).

Almost surely, 2^1210012320 is an apocalyptic number.

1210012320 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 1210012320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2100530880).

1210012320 is an abundant number, since it is smaller than the sum of its proper divisors (2991049440).

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

1210012320 is a wasteful number, since it uses less digits than its factorization.

1210012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210012320 is about 34785.2313489504. The cubic root of 1210012320 is about 1065.6058533437.

Adding to 1210012320 its reverse (232100121), we get a palindrome (1442112441).

It can be divided in two parts, 121001 and 2320, that added together give a palindrome (123321).

The spelling of 1210012320 in words is "one billion, two hundred ten million, twelve thousand, three hundred twenty".