100203120111 has 12 divisors (see below), whose sum is σ = 141925527752. Its totient is φ = 62872545408.

The previous prime is 100203120049. The next prime is 100203120139. The reversal of 100203120111 is 111021302001.

It is not a de Polignac number, because 100203120111 - 2⁶ = 100203120047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100203127111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57786400 + ... + 57788133.

Almost surely, 2^100203120111 is an apocalyptic number.

100203120111 is a deficient number, since it is larger than the sum of its proper divisors (41722407641).

100203120111 is a wasteful number, since it uses less digits than its factorization.

100203120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115574570 (or 115574553 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 100203120111 its reverse (111021302001), we get a palindrome (211224422112).

The spelling of 100203120111 in words is "one hundred billion, two hundred three million, one hundred twenty thousand, one hundred eleven".