1131232130 has 24 divisors (see below), whose sum is σ = 2368662588. Its totient is φ = 387850848.

The previous prime is 1131232121. The next prime is 1131232133. The reversal of 1131232130 is 312321311.

It can be written as a sum of positive squares in 2 ways, for example, as 997991281 + 133240849 = 31591^2 + 11543^2 .

It is a super-2 number, since 2×1131232130² = 2559372263888673800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131232099 and 1131232108.

It is not an unprimeable number, because it can be changed into a prime (1131232133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1153829 + ... + 1154808.

Almost surely, 2^1131232130 is an apocalyptic number.

1131232130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131232130 is an abundant number, since it is smaller than the sum of its proper divisors (1237430458).

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

1131232130 is a wasteful number, since it uses less digits than its factorization.

1131232130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308658 (or 2308651 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1131232130 is about 33633.7944633073. The cubic root of 1131232130 is about 1041.9588728037.

Adding to 1131232130 its reverse (312321311), we get a palindrome (1443553441).

It can be divided in two parts, 1 and 131232130, that added together give a palindrome (131232131).

The spelling of 1131232130 in words is "one billion, one hundred thirty-one million, two hundred thirty-two thousand, one hundred thirty".