1131001006 has 4 divisors (see below), whose sum is σ = 1696501512. Its totient is φ = 565500502.

The previous prime is 1131000989. The next prime is 1131001013. The reversal of 1131001006 is 6001001311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282750250 + ... + 282750253.

It is an arithmetic number, because the mean of its divisors is an integer number (424125378).

Almost surely, 2^1131001006 is an apocalyptic number.

1131001006 is a deficient number, since it is larger than the sum of its proper divisors (565500506).

1131001006 is an equidigital number, since it uses as much as digits as its factorization.

1131001006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565500505.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1131001006 is about 33630.3583983281. The cubic root of 1131001006 is about 1041.8879064951.

Adding to 1131001006 its reverse (6001001311), we get a palindrome (7132002317).

The spelling of 1131001006 in words is "one billion, one hundred thirty-one million, one thousand, six".