1131442630 has 8 divisors (see below), whose sum is σ = 2036596752. Its totient is φ = 452577048.

The previous prime is 1131442607. The next prime is 1131442639. The reversal of 1131442630 is 362441311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1131442595 and 1131442604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131442639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56572122 + ... + 56572141.

It is an arithmetic number, because the mean of its divisors is an integer number (254574594).

Almost surely, 2^1131442630 is an apocalyptic number.

1131442630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131442630 is a deficient number, since it is larger than the sum of its proper divisors (905154122).

1131442630 is a wasteful number, since it uses less digits than its factorization.

1131442630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113144270.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1131442630 is about 33636.9236108179. The cubic root of 1131442630 is about 1042.0234981309.

Adding to 1131442630 its reverse (362441311), we get a palindrome (1493883941).

The spelling of 1131442630 in words is "one billion, one hundred thirty-one million, four hundred forty-two thousand, six hundred thirty".