20533031230 has 16 divisors (see below), whose sum is σ = 37958361120. Its totient is φ = 7991233632.

The previous prime is 20533031221. The next prime is 20533031287. The reversal of 20533031230 is 3213033502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27746970 + ... + 27747709.

It is an arithmetic number, because the mean of its divisors is an integer number (2372397570).

Almost surely, 2^20533031230 is an apocalyptic number.

20533031230 is a deficient number, since it is larger than the sum of its proper divisors (17425329890).

20533031230 is a wasteful number, since it uses less digits than its factorization.

20533031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55494723.

The product of its (nonzero) digits is 1620, while the sum is 22.

Adding to 20533031230 its reverse (3213033502), we get a palindrome (23746064732).

The spelling of 20533031230 in words is "twenty billion, five hundred thirty-three million, thirty-one thousand, two hundred thirty".