2031301121231 has 4 divisors (see below), whose sum is σ = 2036366710464. Its totient is φ = 2026235532000.

The previous prime is 2031301121147. The next prime is 2031301121249. The reversal of 2031301121231 is 1321211031302.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2031301121231 - 2¹⁸ = 2031300859087 is a prime.

It is a super-2 number, since 2×2031301121231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031301124231) 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, 2532794015 + ... + 2532794816.

It is an arithmetic number, because the mean of its divisors is an integer number (509091677616).

Almost surely, 2^{2031301121231} is an apocalyptic number.

2031301121231 is a deficient number, since it is larger than the sum of its proper divisors (5065589233).

2031301121231 is an equidigital number, since it uses as much as digits as its factorization.

2031301121231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065589232.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2031301121231 its reverse (1321211031302), we get a palindrome (3352512152533).

The spelling of 2031301121231 in words is "two trillion, thirty-one billion, three hundred one million, one hundred twenty-one thousand, two hundred thirty-one".