11312042104 has 64 divisors (see below), whose sum is σ = 23918791680. Its totient is φ = 4968864000.

The previous prime is 11312042089. The next prime is 11312042107. The reversal of 11312042104 is 40124021311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312042107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2209852 + ... + 2214964.

It is an arithmetic number, because the mean of its divisors is an integer number (373731120).

Almost surely, 2^11312042104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11312042104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11959395840).

11312042104 is an abundant number, since it is smaller than the sum of its proper divisors (12606749576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312042104 is a wasteful number, since it uses less digits than its factorization.

11312042104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972 (or 5968 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11312042104 its reverse (40124021311), we get a palindrome (51436063415).

It can be divided in two parts, 11312042 and 104, that added together give a triangular number (11312146 = T₄₇₅₆).

The spelling of 11312042104 in words is "eleven billion, three hundred twelve million, forty-two thousand, one hundred four".