30420133442 has 4 divisors (see below), whose sum is σ = 45630200166. Its totient is φ = 15210066720.

The previous prime is 30420133439. The next prime is 30420133463. The reversal of 30420133442 is 24433102403.

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

It can be written as a sum of positive squares in only one way, i.e., 24260866081 + 6159267361 = 155759^2 + 78481^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7605033359 + ... + 7605033362.

Almost surely, 2^30420133442 is an apocalyptic number.

30420133442 is a deficient number, since it is larger than the sum of its proper divisors (15210066724).

30420133442 is a wasteful number, since it uses less digits than its factorization.

30420133442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15210066723.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 30420133442 its reverse (24433102403), we get a palindrome (54853235845).

The spelling of 30420133442 in words is "thirty billion, four hundred twenty million, one hundred thirty-three thousand, four hundred forty-two".