1211100130 has 16 divisors (see below), whose sum is σ = 2183630400. Its totient is φ = 483628912.

The previous prime is 1211100127. The next prime is 1211100131. The reversal of 1211100130 is 310011121.

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

It is not an unprimeable number, because it can be changed into a prime (1211100131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95104 + ... + 107083.

It is an arithmetic number, because the mean of its divisors is an integer number (136476900).

Almost surely, 2^1211100130 is an apocalyptic number.

1211100130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211100130 is a deficient number, since it is larger than the sum of its proper divisors (972530270).

1211100130 is a wasteful number, since it uses less digits than its factorization.

1211100130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202793.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1211100130 is about 34800.8639260579. The cubic root of 1211100130 is about 1065.9250868722.

Adding to 1211100130 its reverse (310011121), we get a palindrome (1521111251).

The spelling of 1211100130 in words is "one billion, two hundred eleven million, one hundred thousand, one hundred thirty".