Search a number
-
+
121320311321032 = 2315165038915129
BaseRepresentation
bin11011100101011100010110…
…000011110111000111001000
3120220120002221002110111120221
4123211130112003313013020
5111400202444144233112
61110005440454355424
734361050261223125
oct3345342603670710
9526502832414527
10121320311321032
1135724722a2152a
121173483295bb74
1352905c1561765
1421d5d11dbd74c
15e05c467dee07
hex6e57160f71c8

121320311321032 has 8 divisors (see below), whose sum is σ = 227475583726950. Its totient is φ = 60660155660512.

The previous prime is 121320311321021. The next prime is 121320311321057. The reversal of 121320311321032 is 230123113023121.

It can be written as a sum of positive squares in only one way, i.e., 68354433370276 + 52965877950756 = 8267674^2 + 7277766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 121320311320988 and 121320311321006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7582519457557 + ... + 7582519457572.

Almost surely, 2121320311321032 is an apocalyptic number.

It is an amenable number.

121320311321032 is a deficient number, since it is larger than the sum of its proper divisors (106155272405918).

121320311321032 is a wasteful number, since it uses less digits than its factorization.

121320311321032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15165038915135 (or 15165038915131 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121320311321032 its reverse (230123113023121), we get a palindrome (351443424344153).

The spelling of 121320311321032 in words is "one hundred twenty-one trillion, three hundred twenty billion, three hundred eleven million, three hundred twenty-one thousand, thirty-two".

Divisors: 1 2 4 8 15165038915129 30330077830258 60660155660516 121320311321032