2135120001 has 16 divisors (see below), whose sum is σ = 3265895424. Its totient is φ = 1215426384.

The previous prime is 2135119997. The next prime is 2135120011. The reversal of 2135120001 is 1000215312.

It is not a de Polignac number, because 2135120001 - 2² = 2135119997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2135120011) 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, 187771 + ... + 198816.

It is an arithmetic number, because the mean of its divisors is an integer number (204118464).

Almost surely, 2^2135120001 is an apocalyptic number.

2135120001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2135120001 is a deficient number, since it is larger than the sum of its proper divisors (1130775423).

2135120001 is a wasteful number, since it uses less digits than its factorization.

2135120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386860.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2135120001 is about 46207.3587321327. The cubic root of 2135120001 is about 1287.6784560002.

Adding to 2135120001 its reverse (1000215312), we get a palindrome (3135335313).

The spelling of 2135120001 in words is "two billion, one hundred thirty-five million, one hundred twenty thousand, one".