Search a number
-
+
123232031212213 = 71123101688943603
BaseRepresentation
bin11100000001010000110001…
…011100100000001010110101
3121011022212102010201011121001
4130001100301130200022311
5112123013144442242323
61114032002534323301
734646135420203510
oct3401206134401265
9534285363634531
10123232031212213
11362a1457a6a9a0
12119a3239ab9531
13539b9663c5b41
142260668153d77
15e3a8344233ad
hex7014317202b5

123232031212213 has 32 divisors (see below), whose sum is σ = 161907258488832. Its totient is φ = 90940555464000.

The previous prime is 123232031212189. The next prime is 123232031212217. The reversal of 123232031212213 is 312212130232321.

It is not a de Polignac number, because 123232031212213 - 229 = 123231494341301 is a prime.

It is a super-2 number, since 2×1232320312122132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123232031212217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344292931 + ... + 344650672.

It is an arithmetic number, because the mean of its divisors is an integer number (5059601827776).

Almost surely, 2123232031212213 is an apocalyptic number.

It is an amenable number.

123232031212213 is a deficient number, since it is larger than the sum of its proper divisors (38675227276619).

123232031212213 is a wasteful number, since it uses less digits than its factorization.

123232031212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688943745.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 123232031212213 its reverse (312212130232321), we get a palindrome (435444161444534).

The spelling of 123232031212213 in words is "one hundred twenty-three trillion, two hundred thirty-two billion, thirty-one million, two hundred twelve thousand, two hundred thirteen".

Divisors: 1 7 11 23 77 101 161 253 707 1111 1771 2323 7777 16261 25553 178871 688943603 4822605221 7578379633 15845702869 53048657431 69583303903 110919920083 174302731559 487083127321 765416342933 1220119120913 1600415989769 5357914400531 11202911928383 17604575887459 123232031212213