20002120035 has 16 divisors (see below), whose sum is σ = 32481056256. Its totient is φ = 10508575968.

The previous prime is 20002120001. The next prime is 20002120121. The reversal of 20002120035 is 53002120002.

It is not a de Polignac number, because 20002120035 - 2⁸ = 20002119779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 20002119996 and 20002120023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9950299 + ... + 9952308.

It is an arithmetic number, because the mean of its divisors is an integer number (2030066016).

Almost surely, 2^20002120035 is an apocalyptic number.

20002120035 is a deficient number, since it is larger than the sum of its proper divisors (12478936221).

20002120035 is a wasteful number, since it uses less digits than its factorization.

20002120035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19902682.

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 20002120035 its reverse (53002120002), we get a palindrome (73004240037).

The spelling of 20002120035 in words is "twenty billion, two million, one hundred twenty thousand, thirty-five".