101021231002018 has 8 divisors (see below), whose sum is σ = 151532130339612. Its totient is φ = 50510520888816.

The previous prime is 101021231002007. The next prime is 101021231002019. The reversal of 101021231002018 is 810200132120101.

It can be written as a sum of positive squares in 2 ways, for example, as 100818809294449 + 202421707569 = 10040857^2 + 449913^2 .

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

It is a super-2 number, since 2×101021231002018² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101021231002018.

It is not an unprimeable number, because it can be changed into a prime (101021231002019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45963805 + ... + 48111472.

Almost surely, 2^{101021231002018} is an apocalyptic number.

101021231002018 is a deficient number, since it is larger than the sum of its proper divisors (50510899337594).

101021231002018 is an equidigital number, since it uses as much as digits as its factorization.

101021231002018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94612196.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 101021231002018 its reverse (810200132120101), we get a palindrome (911221363122119).

The spelling of 101021231002018 in words is "one hundred one trillion, twenty-one billion, two hundred thirty-one million, two thousand, eighteen".