20120351435 has 16 divisors (see below), whose sum is σ = 25418685600. Its totient is φ = 15247005696.

The previous prime is 20120351399. The next prime is 20120351437. The reversal of 20120351435 is 53415302102.

It is a happy number.

It is not a de Polignac number, because 20120351435 - 2²⁴ = 20103574219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120351437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264811 + ... + 1280619.

It is an arithmetic number, because the mean of its divisors is an integer number (1588667850).

Almost surely, 2^20120351435 is an apocalyptic number.

20120351435 is a deficient number, since it is larger than the sum of its proper divisors (5298334165).

20120351435 is a wasteful number, since it uses less digits than its factorization.

20120351435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29230.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 20120351435 its reverse (53415302102), we get a palindrome (73535653537).

The spelling of 20120351435 in words is "twenty billion, one hundred twenty million, three hundred fifty-one thousand, four hundred thirty-five".