100223120031 has 16 divisors (see below), whose sum is σ = 136002432000. Its totient is φ = 65638111968.

The previous prime is 100223120017. The next prime is 100223120047. The reversal of 100223120031 is 130021322001.

It is not a de Polignac number, because 100223120031 - 2¹⁹ = 100222595743 is a prime.

It is a super-2 number, since 2×100223120031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100223120051) 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, 1015356 + ... + 1109681.

It is an arithmetic number, because the mean of its divisors is an integer number (8500152000).

Almost surely, 2^100223120031 is an apocalyptic number.

100223120031 is a deficient number, since it is larger than the sum of its proper divisors (35779311969).

100223120031 is a wasteful number, since it uses less digits than its factorization.

100223120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125318.

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

Adding to 100223120031 its reverse (130021322001), we get a palindrome (230244442032).

The spelling of 100223120031 in words is "one hundred billion, two hundred twenty-three million, one hundred twenty thousand, thirty-one".