11312011033013 has 4 divisors (see below), whose sum is σ = 11312201552748. Its totient is φ = 11311820513280.

The previous prime is 11312011032953. The next prime is 11312011033027. The reversal of 11312011033013 is 31033011021311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2299538714929 + 9012472318084 = 1516423^2 + 3002078^2 .

It is a cyclic number.

It is not a de Polignac number, because 11312011033013 - 2¹² = 11312011028917 is a prime.

It is a super-2 number, since 2×11312011033013² (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 (11312011033033) 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, 95170778 + ... + 95289563.

It is an arithmetic number, because the mean of its divisors is an integer number (2828050388187).

Almost surely, 2^{11312011033013} is an apocalyptic number.

It is an amenable number.

11312011033013 is a deficient number, since it is larger than the sum of its proper divisors (190519735).

11312011033013 is an equidigital number, since it uses as much as digits as its factorization.

11312011033013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190519734.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 11312011033013 its reverse (31033011021311), we get a palindrome (42345022054324).

The spelling of 11312011033013 in words is "eleven trillion, three hundred twelve billion, eleven million, thirty-three thousand, thirteen".