101123001 has 12 divisors (see below), whose sum is σ = 166933312. Its totient is φ = 57784536.

The previous prime is 101122981. The next prime is 101123003. The reversal of 101123001 is 100321101.

It is not a de Polignac number, because 101123001 - 2¹⁴ = 101106617 is a prime.

It is a super-2 number, since 2×101123001² = 20451722662492002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (101123003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 802501 + ... + 802626.

Almost surely, 2^101123001 is an apocalyptic number.

It is an amenable number.

101123001 is a deficient number, since it is larger than the sum of its proper divisors (65810311).

101123001 is a wasteful number, since it uses less digits than its factorization.

101123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605140 (or 1605137 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 101123001 is about 10055.9932875873. The cubic root of 101123001 is about 465.8899225468.

Adding to 101123001 its reverse (100321101), we get a palindrome (201444102).

The spelling of 101123001 in words is "one hundred one million, one hundred twenty-three thousand, one".