1125302331 has 8 divisors (see below), whose sum is σ = 1502008144. Its totient is φ = 749399040.

The previous prime is 1125302329. The next prime is 1125302351. The reversal of 1125302331 is 1332035211.

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

It is not a de Polignac number, because 1125302331 - 2¹ = 1125302329 is a prime.

It is a super-2 number, since 2×1125302331² = 2532610672308067122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125302298 and 1125302307.

It is not an unprimeable number, because it can be changed into a prime (1125302351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197350 + ... + 202971.

It is an arithmetic number, because the mean of its divisors is an integer number (187751018).

Almost surely, 2^1125302331 is an apocalyptic number.

1125302331 is a deficient number, since it is larger than the sum of its proper divisors (376705813).

1125302331 is an equidigital number, since it uses as much as digits as its factorization.

1125302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401261.

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

The square root of 1125302331 is about 33545.5262441954. The cubic root of 1125302331 is about 1040.1350696736.

Adding to 1125302331 its reverse (1332035211), we get a palindrome (2457337542).

The spelling of 1125302331 in words is "one billion, one hundred twenty-five million, three hundred two thousand, three hundred thirty-one".