20153460211 has 4 divisors (see below), whose sum is σ = 20156263792. Its totient is φ = 20150656632.

The previous prime is 20153460199. The next prime is 20153460241. The reversal of 20153460211 is 11206435102.

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 20153460211 - 2⁵ = 20153460179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20153460241) 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, 1390980 + ... + 1405393.

It is an arithmetic number, because the mean of its divisors is an integer number (5039065948).

Almost surely, 2^20153460211 is an apocalyptic number.

20153460211 is a deficient number, since it is larger than the sum of its proper divisors (2803581).

20153460211 is an equidigital number, since it uses as much as digits as its factorization.

20153460211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803580.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20153460211 its reverse (11206435102), we get a palindrome (31359895313).

The spelling of 20153460211 in words is "twenty billion, one hundred fifty-three million, four hundred sixty thousand, two hundred eleven".