3420232421042 has 4 divisors (see below), whose sum is σ = 5130348631566. Its totient is φ = 1710116210520.

The previous prime is 3420232421033. The next prime is 3420232421057. The reversal of 3420232421042 is 2401242320243.

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., 2658468291361 + 761764129681 = 1630481^2 + 872791^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3420232420996 and 3420232421014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855058105259 + ... + 855058105262.

Almost surely, 2^{3420232421042} is an apocalyptic number.

3420232421042 is a deficient number, since it is larger than the sum of its proper divisors (1710116210524).

3420232421042 is a wasteful number, since it uses less digits than its factorization.

3420232421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710116210523.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 3420232421042 its reverse (2401242320243), we get a palindrome (5821474741285).

The spelling of 3420232421042 in words is "three trillion, four hundred twenty billion, two hundred thirty-two million, four hundred twenty-one thousand, forty-two".