211055033451 has 4 divisors (see below), whose sum is σ = 281406711272. Its totient is φ = 140703355632.

The previous prime is 211055033437. The next prime is 211055033471. The reversal of 211055033451 is 154330550112.

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

It is not a de Polignac number, because 211055033451 - 2⁵ = 211055033419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211055033471) 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, 35175838906 + ... + 35175838911.

It is an arithmetic number, because the mean of its divisors is an integer number (70351677818).

Almost surely, 2^211055033451 is an apocalyptic number.

211055033451 is a deficient number, since it is larger than the sum of its proper divisors (70351677821).

211055033451 is an equidigital number, since it uses as much as digits as its factorization.

211055033451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70351677820.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 211055033451 its reverse (154330550112), we get a palindrome (365385583563).

The spelling of 211055033451 in words is "two hundred eleven billion, fifty-five million, thirty-three thousand, four hundred fifty-one".