2131333031101 has 4 divisors (see below), whose sum is σ = 2146666362400. Its totient is φ = 2115999699804.

The previous prime is 2131333031081. The next prime is 2131333031153. The reversal of 2131333031101 is 1011303331312.

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 2131333031101 - 2²⁹ = 2130796160189 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 (2131333031701) 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, 7666665441 + ... + 7666665718.

It is an arithmetic number, because the mean of its divisors is an integer number (536666590600).

Almost surely, 2^{2131333031101} is an apocalyptic number.

It is an amenable number.

2131333031101 is a deficient number, since it is larger than the sum of its proper divisors (15333331299).

2131333031101 is a wasteful number, since it uses less digits than its factorization.

2131333031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15333331298.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 2131333031101 its reverse (1011303331312), we get a palindrome (3142636362413).

The spelling of 2131333031101 in words is "two trillion, one hundred thirty-one billion, three hundred thirty-three million, thirty-one thousand, one hundred one".