100203312111 has 32 divisors (see below), whose sum is σ = 154177551360. Its totient is φ = 56704048896.

The previous prime is 100203312091. The next prime is 100203312119. The reversal of 100203312111 is 111213302001.

It is a happy number.

It is not a de Polignac number, because 100203312111 - 2¹⁸ = 100203049967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203312119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890275 + ... + 996491.

It is an arithmetic number, because the mean of its divisors is an integer number (4818048480).

Almost surely, 2^100203312111 is an apocalyptic number.

100203312111 is a deficient number, since it is larger than the sum of its proper divisors (53974239249).

100203312111 is a wasteful number, since it uses less digits than its factorization.

100203312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106663.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 100203312111 its reverse (111213302001), we get a palindrome (211416614112).

The spelling of 100203312111 in words is "one hundred billion, two hundred three million, three hundred twelve thousand, one hundred eleven".