11321142 has 32 divisors (see below), whose sum is σ = 26138112. Its totient is φ = 3201984.

The previous prime is 11321137. The next prime is 11321147. The reversal of 11321142 is 24112311.

It is an interprime number because it is at equal distance from previous prime (11321137) and next prime (11321147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321147) 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, 3018 + ... + 5634.

It is an arithmetic number, because the mean of its divisors is an integer number (816816).

Almost surely, 2^11321142 is an apocalyptic number.

11321142 is an abundant number, since it is smaller than the sum of its proper divisors (14816970).

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

11321142 is a wasteful number, since it uses less digits than its factorization.

11321142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732.

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

The square root of 11321142 is about 3364.6904761062. The cubic root of 11321142 is about 224.5415653450.

Adding to 11321142 its reverse (24112311), we get a palindrome (35433453).

The spelling of 11321142 in words is "eleven million, three hundred twenty-one thousand, one hundred forty-two".