11131103031331 has 4 divisors (see below), whose sum is σ = 11134034587152. Its totient is φ = 11128171475512.

The previous prime is 11131103031173. The next prime is 11131103031341. The reversal of 11131103031331 is 13313030113111.

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

It is a cyclic number.

It is not a de Polignac number, because 11131103031331 - 2⁹ = 11131103030819 is a prime.

It is a super-2 number, since 2×11131103031331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131103031341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1465772215 + ... + 1465779808.

It is an arithmetic number, because the mean of its divisors is an integer number (2783508646788).

Almost surely, 2^{11131103031331} is an apocalyptic number.

11131103031331 is a deficient number, since it is larger than the sum of its proper divisors (2931555821).

11131103031331 is an equidigital number, since it uses as much as digits as its factorization.

11131103031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931555820.

The product of its (nonzero) digits is 243, while the sum is 22.

Adding to 11131103031331 its reverse (13313030113111), we get a palindrome (24444133144442).

The spelling of 11131103031331 in words is "eleven trillion, one hundred thirty-one billion, one hundred three million, thirty-one thousand, three hundred thirty-one".