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10121601101 = 42061240641
BaseRepresentation
bin10010110110100101…
…10110000001001101
3222010101120121110212
421123102312001031
5131212112213401
64352205012205
7505552122053
oct113322660115
928111517425
1010121601101
11432441a797
121b65854065
13c53c550a1
146c03781d3
153e38ccdbb
hex25b4b604d

10121601101 has 4 divisors (see below), whose sum is σ = 10121883804. Its totient is φ = 10121318400.

The previous prime is 10121601089. The next prime is 10121601109. The reversal of 10121601101 is 10110612101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10110612101 = 19532137479.

It can be written as a sum of positive squares in 2 ways, for example, as 5944564201 + 4177036900 = 77101^2 + 64630^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121601101 - 214 = 10121584717 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 (10121601109) 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, 78260 + ... + 162381.

It is an arithmetic number, because the mean of its divisors is an integer number (2530470951).

Almost surely, 210121601101 is an apocalyptic number.

It is an amenable number.

10121601101 is a deficient number, since it is larger than the sum of its proper divisors (282703).

10121601101 is an equidigital number, since it uses as much as digits as its factorization.

10121601101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282702.

The product of its (nonzero) digits is 12, while the sum is 14.

The spelling of 10121601101 in words is "ten billion, one hundred twenty-one million, six hundred one thousand, one hundred one".

Divisors: 1 42061 240641 10121601101