23031142 has 8 divisors (see below), whose sum is σ = 36048816. Its totient is φ = 11014872.

The previous prime is 23031121. The next prime is 23031157. The reversal of 23031142 is 24113032.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250293 + ... + 250384.

It is an arithmetic number, because the mean of its divisors is an integer number (4506102).

Almost surely, 2^23031142 is an apocalyptic number.

23031142 is a deficient number, since it is larger than the sum of its proper divisors (13017674).

23031142 is a wasteful number, since it uses less digits than its factorization.

23031142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500702.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23031142 is about 4799.0772029631. The cubic root of 23031142 is about 284.5149932950.

Adding to 23031142 its reverse (24113032), we get a palindrome (47144174).

The spelling of 23031142 in words is "twenty-three million, thirty-one thousand, one hundred forty-two".