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2123000031001 = 41439461255859
BaseRepresentation
bin11110111001001100101…
…010011010011100011001
321111221211112002211022211
4132321030222122130121
5234240401001443001
64303143122315121
7306244630342363
oct36711452323431
97457745084284
102123000031001
117493a5197673
122a35504b8aa1
131252761440c5
1474a7a409d33
153a356531351
hex1ee4ca9a719

2123000031001 has 16 divisors (see below), whose sum is σ = 2184471273600. Its totient is φ = 2062010793600.

The previous prime is 2123000030989. The next prime is 2123000031149. The reversal of 2123000031001 is 1001300003212.

It is a cyclic number.

It is not a de Polignac number, because 2123000031001 - 27 = 2123000030873 is a prime.

It is a super-2 number, since 2×21230000310012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123000061001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8169610 + ... + 8425468.

It is an arithmetic number, because the mean of its divisors is an integer number (136529454600).

Almost surely, 22123000031001 is an apocalyptic number.

It is an amenable number.

2123000031001 is a deficient number, since it is larger than the sum of its proper divisors (61471242599).

2123000031001 is a wasteful number, since it uses less digits than its factorization.

2123000031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256800.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 2123000031001 its reverse (1001300003212), we get a palindrome (3124300034213).

The spelling of 2123000031001 in words is "two trillion, one hundred twenty-three billion, thirty-one thousand, one".

Divisors: 1 41 439 461 17999 18901 202379 255859 8297539 10490219 112322101 117950999 4605206141 4835990959 51780488561 2123000031001