2123131022101 has 8 divisors (see below), whose sum is σ = 2135843195904. Its totient is φ = 2110438392720.

The previous prime is 2123131022087. The next prime is 2123131022119. The reversal of 2123131022101 is 1012201313212.

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 2123131022101 - 2⁵ = 2123131022069 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 (2123131022141) 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, 4668165 + ... + 5102746.

It is an arithmetic number, because the mean of its divisors is an integer number (266980399488).

Almost surely, 2^{2123131022101} is an apocalyptic number.

It is an amenable number.

2123131022101 is a deficient number, since it is larger than the sum of its proper divisors (12712173803).

2123131022101 is a wasteful number, since it uses less digits than its factorization.

2123131022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9772211.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2123131022101 its reverse (1012201313212), we get a palindrome (3135332335313).

The spelling of 2123131022101 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-one million, twenty-two thousand, one hundred one".