231323310213031 has 8 divisors (see below), whose sum is σ = 245461866504624. Its totient is φ = 217243787560320.

The previous prime is 231323310213007. The next prime is 231323310213049. The reversal of 231323310213031 is 130312013323132.

It is a happy number.

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 231323310213031 - 2¹¹ = 231323310210983 is a prime.

It is a super-2 number, since 2×231323310213031² (a number of 30 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 (231323310213071) 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, 14758401645 + ... + 14758417318.

It is an arithmetic number, because the mean of its divisors is an integer number (30682733313078).

Almost surely, 2^{231323310213031} is an apocalyptic number.

231323310213031 is a deficient number, since it is larger than the sum of its proper divisors (14138556291593).

231323310213031 is a wasteful number, since it uses less digits than its factorization.

231323310213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29516819441.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 231323310213031 its reverse (130312013323132), we get a palindrome (361635323536163).

The spelling of 231323310213031 in words is "two hundred thirty-one trillion, three hundred twenty-three billion, three hundred ten million, two hundred thirteen thousand, thirty-one".