11312113013 has 4 divisors (see below), whose sum is σ = 11313291660. Its totient is φ = 11310934368.

The previous prime is 11312113003. The next prime is 11312113031. The reversal of 11312113013 is 31031121311.

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 8735332369 + 2576780644 = 93463^2 + 50762^2 .

It is a cyclic number.

It is not a de Polignac number, because 11312113013 - 2⁴ = 11312112997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11312112982 and 11312113000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312113003) 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, 574808 + ... + 594161.

It is an arithmetic number, because the mean of its divisors is an integer number (2828322915).

Almost surely, 2^11312113013 is an apocalyptic number.

It is an amenable number.

11312113013 is a deficient number, since it is larger than the sum of its proper divisors (1178647).

11312113013 is an equidigital number, since it uses as much as digits as its factorization.

11312113013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178646.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11312113013 its reverse (31031121311), we get a palindrome (42343234324).

The spelling of 11312113013 in words is "eleven billion, three hundred twelve million, one hundred thirteen thousand, thirteen".