10201001123 has 4 divisors (see below), whose sum is σ = 10205463840. Its totient is φ = 10196538408.

The previous prime is 10201001117. The next prime is 10201001141. The reversal of 10201001123 is 32110010201.

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 10201001123 - 2⁸ = 10201000867 is a prime.

It is a super-2 number, since 2×10201001123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10201001323) 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, 2227928 + ... + 2232501.

It is an arithmetic number, because the mean of its divisors is an integer number (2551365960).

Almost surely, 2^10201001123 is an apocalyptic number.

10201001123 is a deficient number, since it is larger than the sum of its proper divisors (4462717).

10201001123 is an equidigital number, since it uses as much as digits as its factorization.

10201001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4462716.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10201001123 its reverse (32110010201), we get a palindrome (42311011324).

The spelling of 10201001123 in words is "ten billion, two hundred one million, one thousand, one hundred twenty-three".