203212021103231 has 64 divisors (see below), whose sum is σ = 257787089387520. Its totient is φ = 156253320190080.

The previous prime is 203212021103219. The next prime is 203212021103239. The reversal of 203212021103231 is 132301120212302.

It is a cyclic number.

It is not a de Polignac number, because 203212021103231 - 2⁴² = 198813974592127 is a prime.

It is a super-2 number, since 2×203212021103231² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203212021103197 and 203212021103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212021103239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 763945505 + ... + 764211461.

It is an arithmetic number, because the mean of its divisors is an integer number (4027923271680).

Almost surely, 2^{203212021103231} is an apocalyptic number.

203212021103231 is a deficient number, since it is larger than the sum of its proper divisors (54575068284289).

203212021103231 is a wasteful number, since it uses less digits than its factorization.

203212021103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270004.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 203212021103231 its reverse (132301120212302), we get a palindrome (335513141315533).

The spelling of 203212021103231 in words is "two hundred three trillion, two hundred twelve billion, twenty-one million, one hundred three thousand, two hundred thirty-one".