2031313421 has 8 divisors (see below), whose sum is σ = 2079828960. Its totient is φ = 1982855952.

The previous prime is 2031313387. The next prime is 2031313423. The reversal of 2031313421 is 1243131302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2031313421 - 2¹⁸ = 2031051277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031313393 and 2031313402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031313423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60890 + ... + 88148.

It is an arithmetic number, because the mean of its divisors is an integer number (259978620).

Almost surely, 2^2031313421 is an apocalyptic number.

It is an amenable number.

2031313421 is a deficient number, since it is larger than the sum of its proper divisors (48515539).

2031313421 is a wasteful number, since it uses less digits than its factorization.

2031313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29035.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2031313421 is about 45070.0945306308. The cubic root of 2031313421 is about 1266.4624352704.

Adding to 2031313421 its reverse (1243131302), we get a palindrome (3274444723).

The spelling of 2031313421 in words is "two billion, thirty-one million, three hundred thirteen thousand, four hundred twenty-one".