100311123 has 16 divisors (see below), whose sum is σ = 146086272. Its totient is φ = 60720000.

The previous prime is 100311103. The next prime is 100311149. The reversal of 100311123 is 321113001.

It is not a de Polignac number, because 100311123 - 2⁵ = 100311091 is a prime.

It is a super-2 number, since 2×100311123² = 20124642795042258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100311099 and 100311108.

It is not an unprimeable number, because it can be changed into a prime (100311103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38368 + ... + 40898.

It is an arithmetic number, because the mean of its divisors is an integer number (9130392).

Almost surely, 2^100311123 is an apocalyptic number.

100311123 is a deficient number, since it is larger than the sum of its proper divisors (45775149).

100311123 is a wasteful number, since it uses less digits than its factorization.

100311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 100311123 is about 10015.5440690958. The cubic root of 100311123 is about 464.6397533540.

Adding to 100311123 its reverse (321113001), we get a palindrome (421424124).

The spelling of 100311123 in words is "one hundred million, three hundred eleven thousand, one hundred twenty-three".