1002123230021 has 8 divisors (see below), whose sum is σ = 1042470712800. Its totient is φ = 962161847920.

The previous prime is 1002123229979. The next prime is 1002123230027. The reversal of 1002123230021 is 1200323212001.

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

It is a cyclic number.

It is not a de Polignac number, because 1002123230021 - 2⁶ = 1002123229957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002123230027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96519875 + ... + 96530256.

It is an arithmetic number, because the mean of its divisors is an integer number (130308839100).

Almost surely, 2^{1002123230021} is an apocalyptic number.

It is an amenable number.

1002123230021 is a deficient number, since it is larger than the sum of its proper divisors (40347482779).

1002123230021 is a wasteful number, since it uses less digits than its factorization.

1002123230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193050339.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1002123230021 its reverse (1200323212001), we get a palindrome (2202446442022).

The spelling of 1002123230021 in words is "one trillion, two billion, one hundred twenty-three million, two hundred thirty thousand, twenty-one".