11001131002 has 4 divisors (see below), whose sum is σ = 16501696506. Its totient is φ = 5500565500.

The previous prime is 11001130979. The next prime is 11001131003. The reversal of 11001131002 is 20013110011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20013110011 = 33721 ⋅593491.

It can be written as a sum of positive squares in only one way, i.e., 7724827881 + 3276303121 = 87891^2 + 57239^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11001131002.

It is not an unprimeable number, because it can be changed into a prime (11001131003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750282749 + ... + 2750282752.

Almost surely, 2^11001131002 is an apocalyptic number.

11001131002 is a deficient number, since it is larger than the sum of its proper divisors (5500565504).

11001131002 is an equidigital number, since it uses as much as digits as its factorization.

11001131002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500565503.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 11001131002 its reverse (20013110011), we get a palindrome (31014241013).

The spelling of 11001131002 in words is "eleven billion, one million, one hundred thirty-one thousand, two".