100203011 has 4 divisors (see below), whose sum is σ = 100320792. Its totient is φ = 100085232.

The previous prime is 100203001. The next prime is 100203023. The reversal of 100203011 is 110302001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110302001 = 17 ⋅6488353.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100203011 is a prime.

It is a super-2 number, since 2×100203011² = 20081286826932242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100203011.

It is not an unprimeable number, because it can be changed into a prime (100203001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57605 + ... + 59318.

It is an arithmetic number, because the mean of its divisors is an integer number (25080198).

Almost surely, 2^100203011 is an apocalyptic number.

100203011 is a deficient number, since it is larger than the sum of its proper divisors (117781).

100203011 is an equidigital number, since it uses as much as digits as its factorization.

100203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117780.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 100203011 is about 10010.1454035394. The cubic root of 100203011 is about 464.4727689132.

Adding to 100203011 its reverse (110302001), we get a palindrome (210505012).

It can be divided in two parts, 10020 and 3011, that added together give a palindrome (13031).

The spelling of 100203011 in words is "one hundred million, two hundred three thousand, eleven".