42110120434 has 4 divisors (see below), whose sum is σ = 63165180654. Its totient is φ = 21055060216.

The previous prime is 42110120401. The next prime is 42110120477. The reversal of 42110120434 is 43402101124.

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 only one way, i.e., 35213648409 + 6896472025 = 187653^2 + 83045^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10527530107 + ... + 10527530110.

Almost surely, 2^42110120434 is an apocalyptic number.

42110120434 is a deficient number, since it is larger than the sum of its proper divisors (21055060220).

42110120434 is a wasteful number, since it uses less digits than its factorization.

42110120434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21055060219.

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

Adding to 42110120434 its reverse (43402101124), we get a palindrome (85512221558).

The spelling of 42110120434 in words is "forty-two billion, one hundred ten million, one hundred twenty thousand, four hundred thirty-four".