100031122 has 8 divisors (see below), whose sum is σ = 150203196. Its totient is φ = 49963392.

The previous prime is 100031101. The next prime is 100031159. The reversal of 100031122 is 221130001.

It can be written as a sum of positive squares in 2 ways, for example, as 99780121 + 251001 = 9989^2 + 501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 100031099 and 100031108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23643 + ... + 27550.

Almost surely, 2^100031122 is an apocalyptic number.

100031122 is a deficient number, since it is larger than the sum of its proper divisors (50172074).

100031122 is an equidigital number, since it uses as much as digits as its factorization.

100031122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52172.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100031122 is about 10001.5559789465. Note that the first 3 decimals coincide. The cubic root of 100031122 is about 464.2070302094.

Adding to 100031122 its reverse (221130001), we get a palindrome (321161123).

The spelling of 100031122 in words is "one hundred million, thirty-one thousand, one hundred twenty-two".