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121131102301 = 1111011918391
BaseRepresentation
bin111000011001111111…
…0011111000001011101
3102120122211112120011021
41300303332133001131
53441034030233201
6131351415524141
711515512244516
oct1606376370135
9376584476137
10121131102301
114740a393010
121b586689651
13b565637981
145c1165da0d
15323e431ea1
hex1c33f9f05d

121131102301 has 4 divisors (see below), whose sum is σ = 132143020704. Its totient is φ = 110119183900.

The previous prime is 121131102299. The next prime is 121131102319. The reversal of 121131102301 is 103201131121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121131102301 - 21 = 121131102299 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 (121131102101) 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, 5505959185 + ... + 5505959206.

It is an arithmetic number, because the mean of its divisors is an integer number (33035755176).

Almost surely, 2121131102301 is an apocalyptic number.

121131102301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121131102301 is a deficient number, since it is larger than the sum of its proper divisors (11011918403).

121131102301 is a wasteful number, since it uses less digits than its factorization.

121131102301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011918402.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 121131102301 its reverse (103201131121), we get a palindrome (224332233422).

The spelling of 121131102301 in words is "one hundred twenty-one billion, one hundred thirty-one million, one hundred two thousand, three hundred one".

Divisors: 1 11 11011918391 121131102301