1131890330 has 8 divisors (see below), whose sum is σ = 2037402612. Its totient is φ = 452756128.

The previous prime is 1131890323. The next prime is 1131890369. The reversal of 1131890330 is 330981311.

It can be written as a sum of positive squares in 2 ways, for example, as 1031630161 + 100260169 = 32119^2 + 10013^2 .

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 = 1131890293 and 1131890302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56594507 + ... + 56594526.

Almost surely, 2^1131890330 is an apocalyptic number.

1131890330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131890330 is a deficient number, since it is larger than the sum of its proper divisors (905512282).

1131890330 is a wasteful number, since it uses less digits than its factorization.

1131890330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113189040.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1131890330 is about 33643.5778418408. The cubic root of 1131890330 is about 1042.1609192691.

The spelling of 1131890330 in words is "one billion, one hundred thirty-one million, eight hundred ninety thousand, three hundred thirty".