2131213133333 has 4 divisors (see below), whose sum is σ = 2132562858240. Its totient is φ = 2129863408428.

The previous prime is 2131213133239. The next prime is 2131213133341. The reversal of 2131213133333 is 3333313121312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131213133333 - 2¹⁸ = 2131212871189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131213133296 and 2131213133305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131213132333) 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, 674860085 + ... + 674863242.

It is an arithmetic number, because the mean of its divisors is an integer number (533140714560).

Almost surely, 2^{2131213133333} is an apocalyptic number.

It is an amenable number.

2131213133333 is a deficient number, since it is larger than the sum of its proper divisors (1349724907).

2131213133333 is a wasteful number, since it uses less digits than its factorization.

2131213133333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349724906.

The product of its digits is 8748, while the sum is 29.

Adding to 2131213133333 its reverse (3333313121312), we get a palindrome (5464526254645).

The spelling of 2131213133333 in words is "two trillion, one hundred thirty-one billion, two hundred thirteen million, one hundred thirty-three thousand, three hundred thirty-three".