100220031123 has 16 divisors (see below), whose sum is σ = 137391055872. Its totient is φ = 64943208000.

The previous prime is 100220031113. The next prime is 100220031169. The reversal of 100220031123 is 321130022001.

It is not a de Polignac number, because 100220031123 - 2⁶ = 100220031059 is a prime.

It is a super-2 number, since 2×100220031123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100220031113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1469983 + ... + 1536648.

It is an arithmetic number, because the mean of its divisors is an integer number (8586940992).

Almost surely, 2^100220031123 is an apocalyptic number.

100220031123 is a deficient number, since it is larger than the sum of its proper divisors (37171024749).

100220031123 is a wasteful number, since it uses less digits than its factorization.

100220031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006946.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100220031123 its reverse (321130022001), we get a palindrome (421350053124).

The spelling of 100220031123 in words is "one hundred billion, two hundred twenty million, thirty-one thousand, one hundred twenty-three".