10201442120123 has 4 divisors (see below), whose sum is σ = 10210477942440. Its totient is φ = 10192406297808.

The previous prime is 10201442120101. The next prime is 10201442120143. The reversal of 10201442120123 is 32102124410201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10201442120123 - 2⁶ = 10201442120059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10201442120143) 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, 4517909465 + ... + 4517911722.

It is an arithmetic number, because the mean of its divisors is an integer number (2552619485610).

Almost surely, 2^{10201442120123} is an apocalyptic number.

10201442120123 is a deficient number, since it is larger than the sum of its proper divisors (9035822317).

10201442120123 is an equidigital number, since it uses as much as digits as its factorization.

10201442120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035822316.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 10201442120123 its reverse (32102124410201), we get a palindrome (42303566530324).

The spelling of 10201442120123 in words is "ten trillion, two hundred one billion, four hundred forty-two million, one hundred twenty thousand, one hundred twenty-three".