2031023302321 has 4 divisors (see below), whose sum is σ = 2187255864052. Its totient is φ = 1874790740592.

The previous prime is 2031023302313. The next prime is 2031023302331. The reversal of 2031023302321 is 1232033201302.

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 543074668096 + 1487948634225 = 736936^2 + 1219815^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031023302321 - 2³ = 2031023302313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031023302292 and 2031023302301.

It is not an unprimeable number, because it can be changed into a prime (2031023302331) 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, 78116280846 + ... + 78116280871.

It is an arithmetic number, because the mean of its divisors is an integer number (546813966013).

Almost surely, 2^{2031023302321} is an apocalyptic number.

It is an amenable number.

2031023302321 is a deficient number, since it is larger than the sum of its proper divisors (156232561731).

2031023302321 is a wasteful number, since it uses less digits than its factorization.

2031023302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156232561730.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2031023302321 its reverse (1232033201302), we get a palindrome (3263056503623).

The spelling of 2031023302321 in words is "two trillion, thirty-one billion, twenty-three million, three hundred two thousand, three hundred twenty-one".