11312423442 has 32 divisors (see below), whose sum is σ = 25160146560. Its totient is φ = 3767593680.

The previous prime is 11312423429. The next prime is 11312423461. The reversal of 11312423442 is 24432421311.

11312423442 is a `hidden beast` number, since 1 + 1 + 312 + 4 + 2 + 344 + 2 = 666.

It is a super-2 number, since 2×11312423442² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24918 + ... + 152465.

It is an arithmetic number, because the mean of its divisors is an integer number (786254580).

Almost surely, 2^11312423442 is an apocalyptic number.

11312423442 is an abundant number, since it is smaller than the sum of its proper divisors (13847723118).

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

11312423442 is a wasteful number, since it uses less digits than its factorization.

11312423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178575 (or 178569 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 11312423442 its reverse (24432421311), we get a palindrome (35744844753).

The spelling of 11312423442 in words is "eleven billion, three hundred twelve million, four hundred twenty-three thousand, four hundred forty-two".