142003311 has 8 divisors (see below), whose sum is σ = 197569920. Its totient is φ = 90552792.

The previous prime is 142003307. The next prime is 142003331. The reversal of 142003311 is 113300241.

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

It is not a de Polignac number, because 142003311 - 2² = 142003307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142003331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028941 + ... + 1029078.

It is an arithmetic number, because the mean of its divisors is an integer number (24696240).

Almost surely, 2^142003311 is an apocalyptic number.

142003311 is a deficient number, since it is larger than the sum of its proper divisors (55566609).

142003311 is a wasteful number, since it uses less digits than its factorization.

142003311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058045.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 142003311 is about 11916.5142134770. The cubic root of 142003311 is about 521.7143994857.

Adding to 142003311 its reverse (113300241), we get a palindrome (255303552).

The spelling of 142003311 in words is "one hundred forty-two million, three thousand, three hundred eleven".