1001211300 has 144 divisors (see below), whose sum is σ = 3272012800. Its totient is φ = 262569600.

The previous prime is 1001211271. The next prime is 1001211307. The reversal of 1001211300 is 31121001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1001211307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161661 + ... + 167739.

Almost surely, 2^1001211300 is an apocalyptic number.

1001211300 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 1001211300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636006400).

1001211300 is an abundant number, since it is smaller than the sum of its proper divisors (2270801500).

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

1001211300 is a wasteful number, since it uses less digits than its factorization.

1001211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6163 (or 6150 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1001211300 is about 31641.9231400369. The cubic root of 1001211300 is about 1000.4036037488.

Adding to 1001211300 its reverse (31121001), we get a palindrome (1032332301).

It can be divided in two parts, 10012 and 11300, that added together give a palindrome (21312).

The spelling of 1001211300 in words is "one billion, one million, two hundred eleven thousand, three hundred".