2031313234421 has 4 divisors (see below), whose sum is σ = 2031316425600. Its totient is φ = 2031310043244.

The previous prime is 2031313234417. The next prime is 2031313234469. The reversal of 2031313234421 is 1244323131302.

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 2031313234421 - 2² = 2031313234417 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 (2031313234021) 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, 278231 + ... + 2034708.

It is an arithmetic number, because the mean of its divisors is an integer number (507829106400).

Almost surely, 2^{2031313234421} is an apocalyptic number.

It is an amenable number.

2031313234421 is a deficient number, since it is larger than the sum of its proper divisors (3191179).

2031313234421 is an equidigital number, since it uses as much as digits as its factorization.

2031313234421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191178.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 2031313234421 its reverse (1244323131302), we get a palindrome (3275636365723).

The spelling of 2031313234421 in words is "two trillion, thirty-one billion, three hundred thirteen million, two hundred thirty-four thousand, four hundred twenty-one".