1131301210 has 80 divisors (see below), whose sum is σ = 2345822856. Its totient is φ = 391452672.

The previous prime is 1131301169. The next prime is 1131301219. The reversal of 1131301210 is 121031311.

It can be written as a sum of positive squares in 20 ways, for example, as 1022912289 + 108388921 = 31983^2 + 10411^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1131301219) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4855254 + ... + 4855486.

Almost surely, 2^1131301210 is an apocalyptic number.

1131301210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131301210 is an abundant number, since it is smaller than the sum of its proper divisors (1214521646).

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

1131301210 is an equidigital number, since it uses as much as digits as its factorization.

1131301210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1131301210 is about 33634.8213909335. The cubic root of 1131301210 is about 1041.9800818471.

Adding to 1131301210 its reverse (121031311), we get a palindrome (1252332521).

The spelling of 1131301210 in words is "one billion, one hundred thirty-one million, three hundred one thousand, two hundred ten".