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13531201201 = 71933028743
BaseRepresentation
bin11001001101000010…
…11011111010110001
31021221000100020112001
430212201123322301
5210202441414301
610114404334001
7656213212120
oct144641337261
937830306461
1013531201201
115814012811
1227576a4301
13137845c73b
14925123ab7
15542dcec01
hex32685beb1

13531201201 has 4 divisors (see below), whose sum is σ = 15464229952. Its totient is φ = 11598172452.

The previous prime is 13531201141. The next prime is 13531201213. The reversal of 13531201201 is 10210213531.

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 a cyclic number.

It is not a de Polignac number, because 13531201201 - 211 = 13531199153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531201261) 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, 966514365 + ... + 966514378.

It is an arithmetic number, because the mean of its divisors is an integer number (3866057488).

Almost surely, 213531201201 is an apocalyptic number.

It is an amenable number.

13531201201 is a deficient number, since it is larger than the sum of its proper divisors (1933028751).

13531201201 is an equidigital number, since it uses as much as digits as its factorization.

13531201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933028750.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 13531201201 its reverse (10210213531), we get a palindrome (23741414732).

The spelling of 13531201201 in words is "thirteen billion, five hundred thirty-one million, two hundred one thousand, two hundred one".

Divisors: 1 7 1933028743 13531201201