142312311 has 12 divisors (see below), whose sum is σ = 206425440. Its totient is φ = 94476480.

The previous prime is 142312297. The next prime is 142312361. The reversal of 142312311 is 113213241.

142312311 is a `hidden beast` number, since 1 + 42 + 312 + 311 = 666.

It is not a de Polignac number, because 142312311 - 2¹³ = 142304119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142312361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30930 + ... + 35231.

It is an arithmetic number, because the mean of its divisors is an integer number (17202120).

Almost surely, 2^142312311 is an apocalyptic number.

142312311 is a deficient number, since it is larger than the sum of its proper divisors (64113129).

142312311 is a wasteful number, since it uses less digits than its factorization.

142312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66406 (or 66403 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 142312311 is about 11929.4723688854. The cubic root of 142312311 is about 522.0925431556.

Adding to 142312311 its reverse (113213241), we get a palindrome (255525552).

It can be divided in two parts, 14 and 2312311, that added together give a triangular number (2312325 = T₂₁₅₀).

The spelling of 142312311 in words is "one hundred forty-two million, three hundred twelve thousand, three hundred eleven".