30142240141 has 4 divisors (see below), whose sum is σ = 32460874012. Its totient is φ = 27823606272.

The previous prime is 30142240123. The next prime is 30142240157. The reversal of 30142240141 is 14104224103.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12301028100 + 17841212041 = 110910^2 + 133571^2 .

It is a cyclic number.

It is not a de Polignac number, because 30142240141 - 2⁵ = 30142240109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142240111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159316916 + ... + 1159316941.

It is an arithmetic number, because the mean of its divisors is an integer number (8115218503).

Almost surely, 2^30142240141 is an apocalyptic number.

It is an amenable number.

30142240141 is a deficient number, since it is larger than the sum of its proper divisors (2318633871).

30142240141 is a wasteful number, since it uses less digits than its factorization.

30142240141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318633870.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 30142240141 its reverse (14104224103), we get a palindrome (44246464244).

The spelling of 30142240141 in words is "thirty billion, one hundred forty-two million, two hundred forty thousand, one hundred forty-one".