11312142 has 16 divisors (see below), whose sum is σ = 22725840. Its totient is φ = 3753792.

The previous prime is 11312111. The next prime is 11312177. The reversal of 11312142 is 24121311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2743 + ... + 5490.

It is an arithmetic number, because the mean of its divisors is an integer number (1420365).

Almost surely, 2^11312142 is an apocalyptic number.

11312142 is an abundant number, since it is smaller than the sum of its proper divisors (11413698).

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

11312142 is a wasteful number, since it uses less digits than its factorization.

11312142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8467.

The product of its digits is 48, while the sum is 15.

The square root of 11312142 is about 3363.3527914865. The cubic root of 11312142 is about 224.4820480914.

Adding to 11312142 its reverse (24121311), we get a palindrome (35433453).

The spelling of 11312142 in words is "eleven million, three hundred twelve thousand, one hundred forty-two".