1131020013011 has 8 divisors (see below), whose sum is σ = 1314502679040. Its totient is φ = 953014441608.

The previous prime is 1131020013007. The next prime is 1131020013031. The reversal of 1131020013011 is 1103100201311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131020013011 - 2² = 1131020013007 is a prime.

It is a super-2 number, since 2×1131020013011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131020013031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369273211 + ... + 1369274036.

It is an arithmetic number, because the mean of its divisors is an integer number (164312834880).

Almost surely, 2^{1131020013011} is an apocalyptic number.

1131020013011 is a deficient number, since it is larger than the sum of its proper divisors (183482666029).

1131020013011 is an equidigital number, since it uses as much as digits as its factorization.

1131020013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738547313.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1131020013011 its reverse (1103100201311), we get a palindrome (2234120214322).

The spelling of 1131020013011 in words is "one trillion, one hundred thirty-one billion, twenty million, thirteen thousand, eleven".