203213122101 has 24 divisors (see below), whose sum is σ = 337068020640. Its totient is φ = 116677389600.

The previous prime is 203213122097. The next prime is 203213122141. The reversal of 203213122101 is 101221312302.

203213122101 is a `hidden beast` number, since 20 + 321 + 312 + 2 + 10 + 1 = 666.

It is not a de Polignac number, because 203213122101 - 2² = 203213122097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203213122141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54015430 + ... + 54019191.

It is an arithmetic number, because the mean of its divisors is an integer number (14044500860).

Almost surely, 2^203213122101 is an apocalyptic number.

It is an amenable number.

203213122101 is a deficient number, since it is larger than the sum of its proper divisors (133854898539).

203213122101 is a wasteful number, since it uses less digits than its factorization.

203213122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108034657 (or 108034654 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 203213122101 its reverse (101221312302), we get a palindrome (304434434403).

The spelling of 203213122101 in words is "two hundred three billion, two hundred thirteen million, one hundred twenty-two thousand, one hundred one".