30142031242 has 8 divisors (see below), whose sum is σ = 45214237476. Its totient is φ = 15070618752.

The previous prime is 30142031239. The next prime is 30142031261. The reversal of 30142031242 is 24213024103.

It can be written as a sum of positive squares in 2 ways, for example, as 26357197801 + 3784833441 = 162349^2 + 61521^2 .

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

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, 92103 + ... + 262234.

Almost surely, 2^30142031242 is an apocalyptic number.

30142031242 is a deficient number, since it is larger than the sum of its proper divisors (15072206234).

30142031242 is a wasteful number, since it uses less digits than its factorization.

30142031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396872.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 30142031242 its reverse (24213024103), we get a palindrome (54355055345).

The spelling of 30142031242 in words is "thirty billion, one hundred forty-two million, thirty-one thousand, two hundred forty-two".