2131303010321 has 4 divisors (see below), whose sum is σ = 2256673775652. Its totient is φ = 2005932244992.

The previous prime is 2131303010261. The next prime is 2131303010323. The reversal of 2131303010321 is 1230103031312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1258132372225 + 873170638096 = 1121665^2 + 934436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131303010321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131303010293 and 2131303010302.

It is not an unprimeable number, because it can be changed into a prime (2131303010323) 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, 62685382640 + ... + 62685382673.

It is an arithmetic number, because the mean of its divisors is an integer number (564168443913).

Almost surely, 2^{2131303010321} is an apocalyptic number.

It is an amenable number.

2131303010321 is a deficient number, since it is larger than the sum of its proper divisors (125370765331).

2131303010321 is a wasteful number, since it uses less digits than its factorization.

2131303010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125370765330.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2131303010321 its reverse (1230103031312), we get a palindrome (3361406041633).

The spelling of 2131303010321 in words is "two trillion, one hundred thirty-one billion, three hundred three million, ten thousand, three hundred twenty-one".