1131054330 has 64 divisors (see below), whose sum is σ = 3132499968. Its totient is φ = 256011840.

The previous prime is 1131054311. The next prime is 1131054359. The reversal of 1131054330 is 334501311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1131054297 and 1131054306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4516 + ... + 47775.

It is an arithmetic number, because the mean of its divisors is an integer number (48945312).

Almost surely, 2^1131054330 is an apocalyptic number.

1131054330 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 1131054330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566249984).

1131054330 is an abundant number, since it is smaller than the sum of its proper divisors (2001445638).

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

1131054330 is a wasteful number, since it uses less digits than its factorization.

1131054330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52411.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1131054330 is about 33631.1511845789. The cubic root of 1131054330 is about 1041.9042804144.

Adding to 1131054330 its reverse (334501311), we get a palindrome (1465555641).

The spelling of 1131054330 in words is "one billion, one hundred thirty-one million, fifty-four thousand, three hundred thirty".