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123132113210 = 2589138350689
BaseRepresentation
bin111001010101100111…
…1101111000100111010
3102202211021210110002102
41302223033233010322
54004133310110320
6132322140303402
711616220456541
oct1625317570472
9382737713072
10123132113210
1148246960137
121ba44841b62
13b7c40771b2
145d612dd158
153309e44175
hex1cab3ef13a

123132113210 has 16 divisors (see below), whose sum is σ = 224128117800. Its totient is φ = 48699442176.

The previous prime is 123132113161. The next prime is 123132113249. The reversal of 123132113210 is 12311231321.

It is a happy number.

123132113210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 96582343729 + 26549769481 = 310777^2 + 162941^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69174455 + ... + 69176234.

Almost surely, 2123132113210 is an apocalyptic number.

123132113210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123132113210 is a deficient number, since it is larger than the sum of its proper divisors (100996004590).

123132113210 is a wasteful number, since it uses less digits than its factorization.

123132113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138350785.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123132113210 its reverse (12311231321), we get a palindrome (135443344531).

The spelling of 123132113210 in words is "one hundred twenty-three billion, one hundred thirty-two million, one hundred thirteen thousand, two hundred ten".

Divisors: 1 2 5 10 89 178 445 890 138350689 276701378 691753445 1383506890 12313211321 24626422642 61566056605 123132113210