1131252003 has 24 divisors (see below), whose sum is σ = 1875714048. Its totient is φ = 643573872.

The previous prime is 1131251999. The next prime is 1131252037. The reversal of 1131252003 is 3002521311.

It is not a de Polignac number, because 1131252003 - 2² = 1131251999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131252103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25251 + ... + 53852.

It is an arithmetic number, because the mean of its divisors is an integer number (78154752).

Almost surely, 2^1131252003 is an apocalyptic number.

1131252003 is a deficient number, since it is larger than the sum of its proper divisors (744462045).

1131252003 is a wasteful number, since it uses less digits than its factorization.

1131252003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79343 (or 79340 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1131252003 is about 33634.0898940346. The cubic root of 1131252003 is about 1041.9649743299.

Adding to 1131252003 its reverse (3002521311), we get a palindrome (4133773314).

The spelling of 1131252003 in words is "one billion, one hundred thirty-one million, two hundred fifty-two thousand, three".