2101312203231 has 8 divisors (see below), whose sum is σ = 2801874543664. Its totient is φ = 1400812332480.

The previous prime is 2101312203173. The next prime is 2101312203241. The reversal of 2101312203231 is 1323022131012.

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

It is not a de Polignac number, because 2101312203231 - 2²⁶ = 2101245094367 is a prime.

It is a super-2 number, since 2×2101312203231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101312203198 and 2101312203207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101312203241) 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, 15538876 + ... + 15673521.

It is an arithmetic number, because the mean of its divisors is an integer number (350234317958).

Almost surely, 2^{2101312203231} is an apocalyptic number.

2101312203231 is a deficient number, since it is larger than the sum of its proper divisors (700562340433).

2101312203231 is a wasteful number, since it uses less digits than its factorization.

2101312203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31234841.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2101312203231 its reverse (1323022131012), we get a palindrome (3424334334243).

The spelling of 2101312203231 in words is "two trillion, one hundred one billion, three hundred twelve million, two hundred three thousand, two hundred thirty-one".