100120021023 has 8 divisors (see below), whose sum is σ = 145629121536. Its totient is φ = 60678800600.

The previous prime is 100120021021. The next prime is 100120021087. The reversal of 100120021023 is 320120021001.

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

It is not a de Polignac number, because 100120021023 - 2¹ = 100120021021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120021021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516969983 + ... + 1516970048.

It is an arithmetic number, because the mean of its divisors is an integer number (18203640192).

Almost surely, 2^100120021023 is an apocalyptic number.

100120021023 is a deficient number, since it is larger than the sum of its proper divisors (45509100513).

100120021023 is a wasteful number, since it uses less digits than its factorization.

100120021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033940045.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100120021023 its reverse (320120021001), we get a palindrome (420240042024).

The spelling of 100120021023 in words is "one hundred billion, one hundred twenty million, twenty-one thousand, twenty-three".