100020120031 has 8 divisors (see below), whose sum is σ = 107717387120. Its totient is φ = 92323340352.

The previous prime is 100020120023. The next prime is 100020120037. The reversal of 100020120031 is 130021020001.

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

It is a cyclic number.

It is not a de Polignac number, because 100020120031 - 2³ = 100020120023 is a prime.

It is a super-2 number, since 2×100020120031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020120037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381340 + ... + 587758.

It is an arithmetic number, because the mean of its divisors is an integer number (13464673390).

Almost surely, 2^100020120031 is an apocalyptic number.

100020120031 is a deficient number, since it is larger than the sum of its proper divisors (7697267089).

100020120031 is a wasteful number, since it uses less digits than its factorization.

100020120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243705.

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

Adding to 100020120031 its reverse (130021020001), we get a palindrome (230041140032).

The spelling of 100020120031 in words is "one hundred billion, twenty million, one hundred twenty thousand, thirty-one".