11311000323031 has 4 divisors (see below), whose sum is σ = 11333487401712. Its totient is φ = 11288513244352.

The previous prime is 11311000323011. The next prime is 11311000323047. The reversal of 11311000323031 is 13032300011311.

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 11311000323031 - 2¹⁵ = 11311000290263 is a prime.

It is a super-2 number, since 2×11311000323031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311000323011) 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, 11243538586 + ... + 11243539591.

It is an arithmetic number, because the mean of its divisors is an integer number (2833371850428).

Almost surely, 2^{11311000323031} is an apocalyptic number.

11311000323031 is a deficient number, since it is larger than the sum of its proper divisors (22487078681).

11311000323031 is an equidigital number, since it uses as much as digits as its factorization.

11311000323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22487078680.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11311000323031 its reverse (13032300011311), we get a palindrome (24343300334342).

The spelling of 11311000323031 in words is "eleven trillion, three hundred eleven billion, three hundred twenty-three thousand, thirty-one".