142323031 has 8 divisors (see below), whose sum is σ = 152159904. Its totient is φ = 132648960.

The previous prime is 142323029. The next prime is 142323061. The reversal of 142323031 is 130323241.

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

It is not a de Polignac number, because 142323031 - 2¹ = 142323029 is a prime.

It is a super-2 number, since 2×142323031² = 40511690306053922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142323061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38890 + ... + 42391.

It is an arithmetic number, because the mean of its divisors is an integer number (19019988).

Almost surely, 2^142323031 is an apocalyptic number.

142323031 is a deficient number, since it is larger than the sum of its proper divisors (9836873).

142323031 is a wasteful number, since it uses less digits than its factorization.

142323031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81401.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 142323031 is about 11929.9216678065. The cubic root of 142323031 is about 522.1056520977.

Adding to 142323031 its reverse (130323241), we get a palindrome (272646272).

The spelling of 142323031 in words is "one hundred forty-two million, three hundred twenty-three thousand, thirty-one".