1131251030 has 32 divisors (see below), whose sum is σ = 2506158144. Its totient is φ = 358022016.

The previous prime is 1131251029. The next prime is 1131251047. The reversal of 1131251030 is 301521311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620657 + ... + 622476.

It is an arithmetic number, because the mean of its divisors is an integer number (78317442).

Almost surely, 2^1131251030 is an apocalyptic number.

1131251030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131251030 is an abundant number, since it is smaller than the sum of its proper divisors (1374907114).

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

1131251030 is a wasteful number, since it uses less digits than its factorization.

1131251030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243160.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1131251030 is about 33634.0754295402. The cubic root of 1131251030 is about 1041.9646755954.

Adding to 1131251030 its reverse (301521311), we get a palindrome (1432772341).

The spelling of 1131251030 in words is "one billion, one hundred thirty-one million, two hundred fifty-one thousand, thirty".