1131270630 has 64 divisors (see below), whose sum is σ = 3133099008. Its totient is φ = 256060800.

The previous prime is 1131270577. The next prime is 1131270649. The reversal of 1131270630 is 360721311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131270630.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4521 + ... + 47780.

It is an arithmetic number, because the mean of its divisors is an integer number (48954672).

Almost surely, 2^1131270630 is an apocalyptic number.

1131270630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131270630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566549504).

1131270630 is an abundant number, since it is smaller than the sum of its proper divisors (2001828378).

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

1131270630 is a wasteful number, since it uses less digits than its factorization.

1131270630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52421.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1131270630 is about 33634.3667994508. The cubic root of 1131270630 is about 1041.9706932369.

Adding to 1131270630 its reverse (360721311), we get a palindrome (1491991941).

The spelling of 1131270630 in words is "one billion, one hundred thirty-one million, two hundred seventy thousand, six hundred thirty".