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32012111213 = 129263247651
BaseRepresentation
bin11101110100000100…
…100000110101101101
310001121222102202001122
4131310010200311231
51011030100024323
622412310350325
72212201312205
oct356404406555
9101558382048
1032012111213
1112638002a65
12625495b3a5
1330321bcc54
141799777405
15c755ceec8
hex774120d6d

32012111213 has 4 divisors (see below), whose sum is σ = 32012488128. Its totient is φ = 32011734300.

The previous prime is 32012111149. The next prime is 32012111267. The reversal of 32012111213 is 31211121023.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31211121023 = 67746102099.

It is a cyclic number.

It is not a de Polignac number, because 32012111213 - 26 = 32012111149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32012111191 and 32012111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32012111293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5438 + ... + 253088.

It is an arithmetic number, because the mean of its divisors is an integer number (8003122032).

Almost surely, 232012111213 is an apocalyptic number.

It is an amenable number.

32012111213 is a deficient number, since it is larger than the sum of its proper divisors (376915).

32012111213 is a wasteful number, since it uses less digits than its factorization.

32012111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376914.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 32012111213 its reverse (31211121023), we get a palindrome (63223232236).

The spelling of 32012111213 in words is "thirty-two billion, twelve million, one hundred eleven thousand, two hundred thirteen".

Divisors: 1 129263 247651 32012111213