20042320034 has 32 divisors (see below), whose sum is σ = 35572727232. Its totient is φ = 8365120000.

The previous prime is 20042320021. The next prime is 20042320057. The reversal of 20042320034 is 43002324002.

It is a super-2 number, since 2×20042320034² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20042319988 and 20042320015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638192 + ... + 668859.

It is an arithmetic number, because the mean of its divisors is an integer number (1111647726).

Almost surely, 2^20042320034 is an apocalyptic number.

20042320034 is a deficient number, since it is larger than the sum of its proper divisors (15530407198).

20042320034 is a wasteful number, since it uses less digits than its factorization.

20042320034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307122.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20042320034 its reverse (43002324002), we get a palindrome (63044644036).

The spelling of 20042320034 in words is "twenty billion, forty-two million, three hundred twenty thousand, thirty-four".