2120901607 has 4 divisors (see below), whose sum is σ = 2313710856. Its totient is φ = 1928092360.

The previous prime is 2120901577. The next prime is 2120901613. The reversal of 2120901607 is 7061090212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120901607 - 2⁷ = 2120901479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120901637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96404608 + ... + 96404629.

It is an arithmetic number, because the mean of its divisors is an integer number (578427714).

Almost surely, 2^2120901607 is an apocalyptic number.

2120901607 is a deficient number, since it is larger than the sum of its proper divisors (192809249).

2120901607 is a wasteful number, since it uses less digits than its factorization.

2120901607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192809248.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 2120901607 is about 46053.2475184975. The cubic root of 2120901607 is about 1284.8137439924.

Adding to 2120901607 its reverse (7061090212), we get a palindrome (9181991819).

The spelling of 2120901607 in words is "two billion, one hundred twenty million, nine hundred one thousand, six hundred seven".