31313200230231 has 8 divisors (see below), whose sum is σ = 41834602848000. Its totient is φ = 20833632216312.

The previous prime is 31313200230229. The next prime is 31313200230253. The reversal of 31313200230231 is 13203200231313.

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

It is not a de Polignac number, because 31313200230231 - 2¹ = 31313200230229 is a prime.

It is a super-2 number, since 2×31313200230231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313200230211) 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, 10458649215 + ... + 10458652208.

It is an arithmetic number, because the mean of its divisors is an integer number (5229325356000).

Almost surely, 2^{31313200230231} is an apocalyptic number.

31313200230231 is a deficient number, since it is larger than the sum of its proper divisors (10521402617769).

31313200230231 is a wasteful number, since it uses less digits than its factorization.

31313200230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20917301925.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31313200230231 its reverse (13203200231313), we get a palindrome (44516400461544).

The spelling of 31313200230231 in words is "thirty-one trillion, three hundred thirteen billion, two hundred million, two hundred thirty thousand, two hundred thirty-one".