231310323011 has 8 divisors (see below), whose sum is σ = 231888907104. Its totient is φ = 230732297280.

The previous prime is 231310322921. The next prime is 231310323037. The reversal of 231310323011 is 110323013132.

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 231310323011 - 2¹⁸ = 231310060867 is a prime.

It is a super-2 number, since 2×231310323011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231310323091) 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, 696215 + ... + 973311.

It is an arithmetic number, because the mean of its divisors is an integer number (28986113388).

Almost surely, 2^231310323011 is an apocalyptic number.

231310323011 is a deficient number, since it is larger than the sum of its proper divisors (578584093).

231310323011 is a wasteful number, since it uses less digits than its factorization.

231310323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279181.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231310323011 its reverse (110323013132), we get a palindrome (341633336143).

The spelling of 231310323011 in words is "two hundred thirty-one billion, three hundred ten million, three hundred twenty-three thousand, eleven".