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123231232223201 = 5311135212088077
BaseRepresentation
bin11100000001010000000001…
…110100100110011111100001
3121011022210100110021022201102
4130001100001310212133201
5112123010030422120301
61114031351353244145
734646106546000464
oct3401200164463741
9534283313238642
10123231232223201
11362a1087a5a6a3
12119a3056403655
13539b869a0818b
1422605cddad2db
15e3a7d91eab6b
hex701401d267e1

123231232223201 has 8 divisors (see below), whose sum is σ = 125556522698664. Its totient is φ = 120905948151040.

The previous prime is 123231232223189. The next prime is 123231232223221. The reversal of 123231232223201 is 102322232132321.

It can be written as a sum of positive squares in 4 ways, for example, as 3416863522576 + 119814368700625 = 1848476^2 + 10945975^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123231232223201 - 26 = 123231232223137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123231232223221) 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 7 ways as a sum of consecutive naturals, for example, 57972575 + ... + 60060651.

It is an arithmetic number, because the mean of its divisors is an integer number (15694565337333).

Almost surely, 2123231232223201 is an apocalyptic number.

It is an amenable number.

123231232223201 is a deficient number, since it is larger than the sum of its proper divisors (2325290475463).

123231232223201 is a wasteful number, since it uses less digits than its factorization.

123231232223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201651.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 123231232223201 its reverse (102322232132321), we get a palindrome (225553464355522).

The spelling of 123231232223201 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, two hundred thirty-two million, two hundred twenty-three thousand, two hundred one".

Divisors: 1 53 1113521 2088077 59016613 110668081 2325117589117 123231232223201