231301321101 has 12 divisors (see below), whose sum is σ = 334112206428. Its totient is φ = 154196127744.

The previous prime is 231301321099. The next prime is 231301321103. The reversal of 231301321101 is 101123103132.

231301321101 is a `hidden beast` number, since 2 + 31 + 301 + 321 + 10 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (231301321099) and next prime (231301321103).

It can be written as a sum of positive squares in 2 ways, for example, as 166505618601 + 64795702500 = 408051^2 + 254550^2 .

It is not a de Polignac number, because 231301321101 - 2¹ = 231301321099 is a prime.

It is a super-2 number, since 2×231301321101² (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 (231301321103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74100 + ... + 684173.

It is an arithmetic number, because the mean of its divisors is an integer number (27842683869).

Almost surely, 2^231301321101 is an apocalyptic number.

It is an amenable number.

231301321101 is a deficient number, since it is larger than the sum of its proper divisors (102810885327).

231301321101 is a wasteful number, since it uses less digits than its factorization.

231301321101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792172 (or 792169 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 231301321101 its reverse (101123103132), we get a palindrome (332424424233).

The spelling of 231301321101 in words is "two hundred thirty-one billion, three hundred one million, three hundred twenty-one thousand, one hundred one".