1131513006 has 32 divisors (see below), whose sum is σ = 2483097120. Its totient is φ = 341587584.

The previous prime is 1131513001. The next prime is 1131513011. The reversal of 1131513006 is 6003151311.

It is an interprime number because it is at equal distance from previous prime (1131513001) and next prime (1131513011).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131513001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132721 + ... + 140988.

It is an arithmetic number, because the mean of its divisors is an integer number (77596785).

Almost surely, 2^1131513006 is an apocalyptic number.

1131513006 is an abundant number, since it is smaller than the sum of its proper divisors (1351584114).

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

1131513006 is a wasteful number, since it uses less digits than its factorization.

1131513006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273780.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1131513006 is about 33637.9697068655. The cubic root of 1131513006 is about 1042.0451023859.

Adding to 1131513006 its reverse (6003151311), we get a palindrome (7134664317).

The spelling of 1131513006 in words is "one billion, one hundred thirty-one million, five hundred thirteen thousand, six".