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110121012101 = 472123325781
BaseRepresentation
bin110011010001110111…
…0010100101110000101
3101112020112010000202202
41212203232110232011
53301011434341401
6122331111244245
710645621105262
oct1464356245605
9345215100682
10110121012101
114277a493311
1219413379685
13a4cc5b96b9
1454892c4269
152ce7a4d06b
hex19a3b94b85

110121012101 has 4 divisors (see below), whose sum is σ = 110144342604. Its totient is φ = 110097681600.

The previous prime is 110121012061. The next prime is 110121012107. The reversal of 110121012101 is 101210121011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101210121011 = 373271340807.

It can be written as a sum of positive squares in 2 ways, for example, as 84898807876 + 25222204225 = 291374^2 + 158815^2 .

It is a cyclic number.

It is not a de Polignac number, because 110121012101 - 26 = 110121012037 is a prime.

It is a super-2 number, since 2×1101210121012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121012107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11658170 + ... + 11667611.

It is an arithmetic number, because the mean of its divisors is an integer number (27536085651).

Almost surely, 2110121012101 is an apocalyptic number.

It is an amenable number.

110121012101 is a deficient number, since it is larger than the sum of its proper divisors (23330503).

110121012101 is an equidigital number, since it uses as much as digits as its factorization.

110121012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23330502.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 110121012101 its reverse (101210121011), we get a palindrome (211331133112).

The spelling of 110121012101 in words is "one hundred ten billion, one hundred twenty-one million, twelve thousand, one hundred one".

Divisors: 1 4721 23325781 110121012101