11313531442 has 4 divisors (see below), whose sum is σ = 16970297166. Its totient is φ = 5656765720.

The previous prime is 11313531413. The next prime is 11313531451. The reversal of 11313531442 is 24413531311.

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

It can be written as a sum of positive squares in only one way, i.e., 9070467121 + 2243064321 = 95239^2 + 47361^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11313531442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828382859 + ... + 2828382862.

Almost surely, 2^11313531442 is an apocalyptic number.

11313531442 is a deficient number, since it is larger than the sum of its proper divisors (5656765724).

11313531442 is an equidigital number, since it uses as much as digits as its factorization.

11313531442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656765723.

The product of its digits is 4320, while the sum is 28.

The spelling of 11313531442 in words is "eleven billion, three hundred thirteen million, five hundred thirty-one thousand, four hundred forty-two".