100120023323021 has 6 divisors (see below), whose sum is σ = 108413989752330. Its totient is φ = 92418483067248.

The previous prime is 100120023322993. The next prime is 100120023323027. The reversal of 100120023323021 is 120323320021001.

It can be written as a sum of positive squares in 3 ways, for example, as 4319268541225 + 95800754781796 = 2078285^2 + 9787786^2 .

It is a de Polignac number, because none of the positive numbers 2^k-100120023323021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120023322984 and 100120023323002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120023323027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 296213086586 + ... + 296213086923.

It is an arithmetic number, because the mean of its divisors is an integer number (18068998292055).

Almost surely, 2^{100120023323021} is an apocalyptic number.

It is an amenable number.

100120023323021 is a deficient number, since it is larger than the sum of its proper divisors (8293966429309).

100120023323021 is an equidigital number, since it uses as much as digits as its factorization.

100120023323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592426173535 (or 592426173522 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 100120023323021 its reverse (120323320021001), we get a palindrome (220443343344022).

The spelling of 100120023323021 in words is "one hundred trillion, one hundred twenty billion, twenty-three million, three hundred twenty-three thousand, twenty-one".