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123000021322201 = 1091128440562589
BaseRepresentation
bin11011111101111000101100…
…100101000000100111011001
3121010111200112222011120221201
4123331320230211000213121
5112110213020424302301
61113333232453234201
734623313122525142
oct3375705445004731
9533450488146851
10123000021322201
113621201a483641
121196628a332961
135382b104b3a5a
142253338b16ac9
15e347a5bac201
hex6fde2c9409d9

123000021322201 has 4 divisors (see below), whose sum is σ = 124128461884900. Its totient is φ = 121871580759504.

The previous prime is 123000021322141. The next prime is 123000021322279. The reversal of 123000021322201 is 102223120000321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54958573694025 + 68041447628176 = 7413405^2 + 8248724^2 .

It is a cyclic number.

It is not a de Polignac number, because 123000021322201 - 227 = 122999887104473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123000021322601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564220281186 + ... + 564220281403.

It is an arithmetic number, because the mean of its divisors is an integer number (31032115471225).

Almost surely, 2123000021322201 is an apocalyptic number.

It is an amenable number.

123000021322201 is a deficient number, since it is larger than the sum of its proper divisors (1128440562699).

123000021322201 is a wasteful number, since it uses less digits than its factorization.

123000021322201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128440562698.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123000021322201 its reverse (102223120000321), we get a palindrome (225223141322522).

The spelling of 123000021322201 in words is "one hundred twenty-three trillion, twenty-one million, three hundred twenty-two thousand, two hundred one".

Divisors: 1 109 1128440562589 123000021322201