1131012001 has 4 divisors (see below), whose sum is σ = 1292585152. Its totient is φ = 969438852.

The previous prime is 1131011983. The next prime is 1131012007. The reversal of 1131012001 is 1002101311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1002101311 = 1291 ⋅776221.

It is a cyclic number.

It is not a de Polignac number, because 1131012001 - 2⁷ = 1131011873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131012007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80786565 + ... + 80786578.

It is an arithmetic number, because the mean of its divisors is an integer number (323146288).

Almost surely, 2^1131012001 is an apocalyptic number.

It is an amenable number.

1131012001 is a deficient number, since it is larger than the sum of its proper divisors (161573151).

1131012001 is an equidigital number, since it uses as much as digits as its factorization.

1131012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161573150.

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

The square root of 1131012001 is about 33630.5218663047. The cubic root of 1131012001 is about 1041.8912827139.

Adding to 1131012001 its reverse (1002101311), we get a palindrome (2133113312).

The spelling of 1131012001 in words is "one billion, one hundred thirty-one million, twelve thousand, one".