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103121212033 = 7174128877321
BaseRepresentation
bin110000000001010000…
…0001101001010000001
3100212011200202100020101
41200002200031022001
53142143012241113
6115212341242401
710310303561020
oct1400240151201
9325150670211
10103121212033
113a808265984
1217b9b103401
139955353778
144dc37ba8b7
152a382732dd
hex180280d281

103121212033 has 32 divisors (see below), whose sum is σ = 127890620928. Its totient is φ = 81121996800.

The previous prime is 103121211923. The next prime is 103121212087. The reversal of 103121212033 is 330212121301.

It is a cyclic number.

It is not a de Polignac number, because 103121212033 - 229 = 102584341121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103121212033.

It is not an unprimeable number, because it can be changed into a prime (103121212093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14082013 + ... + 14089333.

It is an arithmetic number, because the mean of its divisors is an integer number (3996581904).

Almost surely, 2103121212033 is an apocalyptic number.

It is an amenable number.

103121212033 is a deficient number, since it is larger than the sum of its proper divisors (24769408895).

103121212033 is a wasteful number, since it uses less digits than its factorization.

103121212033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10273.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103121212033 its reverse (330212121301), we get a palindrome (433333333334).

The spelling of 103121212033 in words is "one hundred three billion, one hundred twenty-one million, two hundred twelve thousand, thirty-three".

Divisors: 1 7 17 41 119 287 697 2887 4879 7321 20209 49079 51247 118367 124457 300161 343553 828569 871199 2012239 2101127 5102737 14085673 21135727 35719159 147950089 359307359 866564807 2515151513 6065953649 14731601719 103121212033