101231232311 has 4 divisors (see below), whose sum is σ = 110434071624. Its totient is φ = 92028393000.

The previous prime is 101231232293. The next prime is 101231232371. The reversal of 101231232311 is 113232132101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101231232311 - 2²² = 101227038007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231232371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4601419640 + ... + 4601419661.

It is an arithmetic number, because the mean of its divisors is an integer number (27608517906).

Almost surely, 2^101231232311 is an apocalyptic number.

101231232311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101231232311 is a deficient number, since it is larger than the sum of its proper divisors (9202839313).

101231232311 is an equidigital number, since it uses as much as digits as its factorization.

101231232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9202839312.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 101231232311 its reverse (113232132101), we get a palindrome (214463364412).

The spelling of 101231232311 in words is "one hundred one billion, two hundred thirty-one million, two hundred thirty-two thousand, three hundred eleven".