1210012300 has 72 divisors (see below), whose sum is σ = 3005807616. Its totient is φ = 414173760.

The previous prime is 1210012291. The next prime is 1210012319. The reversal of 1210012300 is 32100121.

It is a Harshad number since it is a multiple of its sum of digits (10).

1210012300 is a modest number, since divided by 12300 gives 12100 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 603099 + ... + 605101.

It is an arithmetic number, because the mean of its divisors is an integer number (41747328).

Almost surely, 2^1210012300 is an apocalyptic number.

1210012300 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 1210012300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502903808).

1210012300 is an abundant number, since it is smaller than the sum of its proper divisors (1795795316).

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

1210012300 is a wasteful number, since it uses less digits than its factorization.

1210012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887 (or 2880 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1210012300 is about 34785.2310614721. The cubic root of 1210012300 is about 1065.6058474727.

Adding to 1210012300 its reverse (32100121), we get a palindrome (1242112421).

The spelling of 1210012300 in words is "one billion, two hundred ten million, twelve thousand, three hundred".