11723142 has 8 divisors (see below), whose sum is σ = 23446296. Its totient is φ = 3907712.

The previous prime is 11723141. The next prime is 11723147. The reversal of 11723142 is 24132711.

It is a sphenic number, since it is the product of 3 distinct primes.

11723142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11723141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 976923 + ... + 976934.

It is an arithmetic number, because the mean of its divisors is an integer number (2930787).

Almost surely, 2^11723142 is an apocalyptic number.

11723142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11723142 is a wasteful number, since it uses less digits than its factorization.

11723142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953862.

The product of its digits is 336, while the sum is 21.

The square root of 11723142 is about 3423.9074169726. The cubic root of 11723142 is about 227.1684467150.

Adding to 11723142 its reverse (24132711), we get a palindrome (35855853).

The spelling of 11723142 in words is "eleven million, seven hundred twenty-three thousand, one hundred forty-two".