Search a number
-
+
231113013132101 = 1073381215313121
BaseRepresentation
bin110100100011001000110001…
…000011001111101101000101
31010022022012002020220012002212
4310203020301003033231011
5220243023422330211401
62135311504050513205
766452235625362152
oct6443106103175505
91108265066805085
10231113013132101
116770452989a121
1221b07300595805
139bc5b2c4c5459
14410dd02861229
151babba6eb1dbb
hexd232310cfb45

231113013132101 has 4 divisors (see below), whose sum is σ = 231113229518604. Its totient is φ = 231112796745600.

The previous prime is 231113013132011. The next prime is 231113013132119. The reversal of 231113013132101 is 101231310311132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 127935870643876 + 103177142488225 = 11310874^2 + 10157615^2 .

It is a cyclic number.

It is not a de Polignac number, because 231113013132101 - 218 = 231113012869957 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 (231113013137101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106583180 + ... + 108729941.

It is an arithmetic number, because the mean of its divisors is an integer number (57778307379651).

Almost surely, 2231113013132101 is an apocalyptic number.

It is an amenable number.

231113013132101 is a deficient number, since it is larger than the sum of its proper divisors (216386503).

231113013132101 is a wasteful number, since it uses less digits than its factorization.

231113013132101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216386502.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 231113013132101 its reverse (101231310311132), we get a palindrome (332344323443233).

The spelling of 231113013132101 in words is "two hundred thirty-one trillion, one hundred thirteen billion, thirteen million, one hundred thirty-two thousand, one hundred one".

Divisors: 1 1073381 215313121 231113013132101