10001102123 has 4 divisors (see below), whose sum is σ = 10005891720. Its totient is φ = 9996312528.

The previous prime is 10001102119. The next prime is 10001102131. The reversal of 10001102123 is 32120110001.

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 10001102123 - 2² = 10001102119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001104123) 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, 2391665 + ... + 2395842.

It is an arithmetic number, because the mean of its divisors is an integer number (2501472930).

Almost surely, 2^10001102123 is an apocalyptic number.

10001102123 is a deficient number, since it is larger than the sum of its proper divisors (4789597).

10001102123 is an equidigital number, since it uses as much as digits as its factorization.

10001102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789596.

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

Adding to 10001102123 its reverse (32120110001), we get a palindrome (42121212124).

The spelling of 10001102123 in words is "ten billion, one million, one hundred two thousand, one hundred twenty-three".