2121432035 has 16 divisors (see below), whose sum is σ = 2577640320. Its totient is φ = 1675914240.

The previous prime is 2121432031. The next prime is 2121432043. The reversal of 2121432035 is 5302341212.

It is not a de Polignac number, because 2121432035 - 2² = 2121432031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121432035.

It is not an unprimeable number, because it can be changed into a prime (2121432031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402779 + ... + 408011.

It is an arithmetic number, because the mean of its divisors is an integer number (161102520).

Almost surely, 2^2121432035 is an apocalyptic number.

2121432035 is a deficient number, since it is larger than the sum of its proper divisors (456208285).

2121432035 is an equidigital number, since it uses as much as digits as its factorization.

2121432035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6238.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2121432035 is about 46059.0060140251. The cubic root of 2121432035 is about 1284.9208437869.

Adding to 2121432035 its reverse (5302341212), we get a palindrome (7423773247).

The spelling of 2121432035 in words is "two billion, one hundred twenty-one million, four hundred thirty-two thousand, thirty-five".