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13120211203 = 111192746473
BaseRepresentation
bin11000011100000011…
…01000100100000011
31020212100222210020021
430032001220210003
5203332233224303
610005523354311
7643062645421
oct141601504403
936770883207
1013120211203
115623020960
122661b22997
131311270aa8
148c66dc111
1551bc99ebd
hex30e068903

13120211203 has 4 divisors (see below), whose sum is σ = 14312957688. Its totient is φ = 11927464720.

The previous prime is 13120211201. The next prime is 13120211297. The reversal of 13120211203 is 30211202131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30211202131 = 112746472921.

It is a cyclic number.

It is not a de Polignac number, because 13120211203 - 21 = 13120211201 is a prime.

It is a super-2 number, since 2×131202112032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13120211201) 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, 596373226 + ... + 596373247.

It is an arithmetic number, because the mean of its divisors is an integer number (3578239422).

Almost surely, 213120211203 is an apocalyptic number.

13120211203 is a deficient number, since it is larger than the sum of its proper divisors (1192746485).

13120211203 is a wasteful number, since it uses less digits than its factorization.

13120211203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192746484.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13120211203 its reverse (30211202131), we get a palindrome (43331413334).

The spelling of 13120211203 in words is "thirteen billion, one hundred twenty million, two hundred eleven thousand, two hundred three".

Divisors: 1 11 1192746473 13120211203