2153211043 has 4 divisors (see below), whose sum is σ = 2266537960. Its totient is φ = 2039884128.

The previous prime is 2153211031. The next prime is 2153211089. The reversal of 2153211043 is 3401123512.

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 2153211043 - 2¹³ = 2153202851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153211013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56663430 + ... + 56663467.

It is an arithmetic number, because the mean of its divisors is an integer number (566634490).

Almost surely, 2^2153211043 is an apocalyptic number.

2153211043 is a deficient number, since it is larger than the sum of its proper divisors (113326917).

2153211043 is a wasteful number, since it uses less digits than its factorization.

2153211043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113326916.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2153211043 is about 46402.7051258868. The cubic root of 2153211043 is about 1291.3050996662.

Adding to 2153211043 its reverse (3401123512), we get a palindrome (5554334555).

The spelling of 2153211043 in words is "two billion, one hundred fifty-three million, two hundred eleven thousand, forty-three".