20043233153 has 4 divisors (see below), whose sum is σ = 20241681108. Its totient is φ = 19844785200.

The previous prime is 20043233149. The next prime is 20043233201. The reversal of 20043233153 is 35133234002.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19736878144 + 306355009 = 140488^2 + 17503^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043233153 - 2² = 20043233149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20043233113) 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, 99223826 + ... + 99224027.

It is an arithmetic number, because the mean of its divisors is an integer number (5060420277).

Almost surely, 2^20043233153 is an apocalyptic number.

It is an amenable number.

20043233153 is a deficient number, since it is larger than the sum of its proper divisors (198447955).

20043233153 is a wasteful number, since it uses less digits than its factorization.

20043233153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198447954.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 20043233153 its reverse (35133234002), we get a palindrome (55176467155).

The spelling of 20043233153 in words is "twenty billion, forty-three million, two hundred thirty-three thousand, one hundred fifty-three".