231011310111 has 8 divisors (see below), whose sum is σ = 308028951600. Its totient is φ = 154000604352.

The previous prime is 231011310097. The next prime is 231011310137. The reversal of 231011310111 is 111013110132.

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

It is not a de Polignac number, because 231011310111 - 2¹³ = 231011301919 is a prime.

It is a super-2 number, since 2×231011310111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231011310611) 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, 1655710 + ... + 1789803.

It is an arithmetic number, because the mean of its divisors is an integer number (38503618950).

Almost surely, 2^231011310111 is an apocalyptic number.

231011310111 is a deficient number, since it is larger than the sum of its proper divisors (77017641489).

231011310111 is a wasteful number, since it uses less digits than its factorization.

231011310111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467865.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 231011310111 its reverse (111013110132), we get a palindrome (342024420243).

The spelling of 231011310111 in words is "two hundred thirty-one billion, eleven million, three hundred ten thousand, one hundred eleven".