30434232142 has 4 divisors (see below), whose sum is σ = 45651348216. Its totient is φ = 15217116070.

The previous prime is 30434232139. The next prime is 30434232233. The reversal of 30434232142 is 24123243403.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30434232142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7608558034 + ... + 7608558037.

It is an arithmetic number, because the mean of its divisors is an integer number (11412837054).

Almost surely, 2^30434232142 is an apocalyptic number.

30434232142 is a deficient number, since it is larger than the sum of its proper divisors (15217116074).

30434232142 is a wasteful number, since it uses less digits than its factorization.

30434232142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15217116073.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 30434232142 its reverse (24123243403), we get a palindrome (54557475545).

The spelling of 30434232142 in words is "thirty billion, four hundred thirty-four million, two hundred thirty-two thousand, one hundred forty-two".