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10121111441 = 72069698827
BaseRepresentation
bin10010110110100001…
…11110011110010001
3222010100122201210022
421123100332132101
5131212001031231
64352150313225
7505545012350
oct113320763621
928110581708
1010121111441
114324115911
121b65658815
13c53b1324c
146c028b997
153e3832c7b
hex25b43e791

10121111441 has 8 divisors (see below), whose sum is σ = 11572591680. Its totient is φ = 8671033008.

The previous prime is 10121111437. The next prime is 10121111453. The reversal of 10121111441 is 14411112101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10121111441 - 22 = 10121111437 is a prime.

It is a super-2 number, since 2×101211114412 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10121111401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334931 + ... + 363896.

It is an arithmetic number, because the mean of its divisors is an integer number (1446573960).

Almost surely, 210121111441 is an apocalyptic number.

It is an amenable number.

10121111441 is a deficient number, since it is larger than the sum of its proper divisors (1451480239).

10121111441 is an equidigital number, since it uses as much as digits as its factorization.

10121111441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700903.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10121111441 its reverse (14411112101), we get a palindrome (24532223542).

The spelling of 10121111441 in words is "ten billion, one hundred twenty-one million, one hundred eleven thousand, four hundred forty-one".

Divisors: 1 7 2069 14483 698827 4891789 1445873063 10121111441