2153623211 has 4 divisors (see below), whose sum is σ = 2154557424. Its totient is φ = 2152689000.

The previous prime is 2153623207. The next prime is 2153623231. The reversal of 2153623211 is 1123263512.

It is a happy number.

2153623211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2153623211 - 2² = 2153623207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153623231) 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, 463640 + ... + 468261.

It is an arithmetic number, because the mean of its divisors is an integer number (538639356).

Almost surely, 2^2153623211 is an apocalyptic number.

2153623211 is a deficient number, since it is larger than the sum of its proper divisors (934213).

2153623211 is an equidigital number, since it uses as much as digits as its factorization.

2153623211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934212.

The product of its digits is 2160, while the sum is 26.

The square root of 2153623211 is about 46407.1461199673. The cubic root of 2153623211 is about 1291.3874883519.

Adding to 2153623211 its reverse (1123263512), we get a palindrome (3276886723).

The spelling of 2153623211 in words is "two billion, one hundred fifty-three million, six hundred twenty-three thousand, two hundred eleven".