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12103404401 = 116323174017
BaseRepresentation
bin10110100010110101…
…10100101101110001
31011020111200122112002
423101122310231301
5144241432420101
65321001543345
7605635145204
oct132132645561
934214618462
1012103404401
115151068960
1224194a4b55
1311ab6caa6a
1482b65793b
154ac898d6b
hex2d16b4b71

12103404401 has 8 divisors (see below), whose sum is σ = 13205877984. Its totient is φ = 11001291520.

The previous prime is 12103404353. The next prime is 12103404433. The reversal of 12103404401 is 10440430121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12103404401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103404461) 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, 17456 + ... + 156561.

It is an arithmetic number, because the mean of its divisors is an integer number (1650734748).

Almost surely, 212103404401 is an apocalyptic number.

12103404401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12103404401 is a deficient number, since it is larger than the sum of its proper divisors (1102473583).

12103404401 is a wasteful number, since it uses less digits than its factorization.

12103404401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180351.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12103404401 its reverse (10440430121), we get a palindrome (22543834522).

The spelling of 12103404401 in words is "twelve billion, one hundred three million, four hundred four thousand, four hundred one".

Divisors: 1 11 6323 69553 174017 1914187 1100309491 12103404401