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123132131313101 = 73101113147791249
BaseRepresentation
bin11011111111110011101110…
…111100101000010111001101
3121010222022112221102110221122
4123333303232330220113031
5112114344101104004401
61113514041545010325
734636001000110361
oct3377635674502715
9533868487373848
10123132131313101
11362630530950a9
12119879b97839a5
135392405563ac1
1422598ac50d2a1
15e37e38dad21b
hex6ffceef285cd

123132131313101 has 16 divisors (see below), whose sum is σ = 127170232470000. Its totient is φ = 119178862387200.

The previous prime is 123132131313053. The next prime is 123132131313119. The reversal of 123132131313101 is 101313131231321.

It can be written as a sum of positive squares in 8 ways, for example, as 5707297110025 + 117424834203076 = 2388995^2 + 10836274^2 .

It is a cyclic number.

It is not a de Polignac number, because 123132131313101 - 210 = 123132131312077 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 (123132131313901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73062476 + ... + 74728773.

It is an arithmetic number, because the mean of its divisors is an integer number (7948139529375).

Almost surely, 2123132131313101 is an apocalyptic number.

It is an amenable number.

123132131313101 is a deficient number, since it is larger than the sum of its proper divisors (4038101156899).

123132131313101 is a wasteful number, since it uses less digits than its factorization.

123132131313101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147791536.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 123132131313101 its reverse (101313131231321), we get a palindrome (224445262544422).

The spelling of 123132131313101 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, one hundred thirty-one million, three hundred thirteen thousand, one hundred one".

Divisors: 1 73 101 113 7373 8249 11413 833149 147791249 10788761177 14926916149 16700411137 1089664878877 1219130013001 1686741524837 123132131313101