1201312300 has 72 divisors (see below), whose sum is σ = 2742949440. Its totient is φ = 456076800.

The previous prime is 1201312289. The next prime is 1201312331. The reversal of 1201312300 is 32131021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147741 + ... + 155659.

It is an arithmetic number, because the mean of its divisors is an integer number (38096520).

Almost surely, 2^1201312300 is an apocalyptic number.

1201312300 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 1201312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1371474720).

1201312300 is an abundant number, since it is smaller than the sum of its proper divisors (1541637140).

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

1201312300 is a wasteful number, since it uses less digits than its factorization.

1201312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8011 (or 8004 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1201312300 is about 34659.9523946586. The cubic root of 1201312300 is about 1063.0457966285.

Adding to 1201312300 its reverse (32131021), we get a palindrome (1233443321).

The spelling of 1201312300 in words is "one billion, two hundred one million, three hundred twelve thousand, three hundred".