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12311220213103 = 717211021932449
BaseRepresentation
bin1011001100100110110111…
…1010000101010101101111
31121120221102002211000100211
42303021231322011111233
53103201334333304403
642103410235203251
72410312341122410
oct263115572052557
947527362730324
1012311220213103
113a17182948299
121469bb68a6527
136b3c34c59536
14307c1ad55807
1516539a66c06d
hexb326de8556f

12311220213103 has 8 divisors (see below), whose sum is σ = 14078141431200. Its totient is φ = 10546342863360.

The previous prime is 12311220213101. The next prime is 12311220213119. The reversal of 12311220213103 is 30131202211321.

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 12311220213103 - 21 = 12311220213101 is a prime.

It is a super-2 number, since 2×123112202131032 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311220213101) 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, 510954178 + ... + 510978271.

It is an arithmetic number, because the mean of its divisors is an integer number (1759767678900).

Almost surely, 212311220213103 is an apocalyptic number.

12311220213103 is a deficient number, since it is larger than the sum of its proper divisors (1766921218097).

12311220213103 is a wasteful number, since it uses less digits than its factorization.

12311220213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021934177.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12311220213103 its reverse (30131202211321), we get a palindrome (42442422424424).

The spelling of 12311220213103 in words is "twelve trillion, three hundred eleven billion, two hundred twenty million, two hundred thirteen thousand, one hundred three".

Divisors: 1 7 1721 12047 1021932449 7153527143 1758745744729 12311220213103