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121130013 = 3295632473
BaseRepresentation
bin1110011100001…
…00110000011101
322102221001010210
413032010300131
5222002130023
620004123033
73000405504
oct716046035
9272831123
10121130013
1162413854
1234696479
131c131384
141213183b
15a97a593
hex7384c1d

121130013 has 16 divisors (see below), whose sum is σ = 167440320. Its totient is φ = 77798784.

The previous prime is 121130003. The next prime is 121130033. The reversal of 121130013 is 310031121.

It is not a de Polignac number, because 121130013 - 210 = 121128989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47745 + ... + 50217.

It is an arithmetic number, because the mean of its divisors is an integer number (10465020).

Almost surely, 2121130013 is an apocalyptic number.

It is an amenable number.

121130013 is a deficient number, since it is larger than the sum of its proper divisors (46310307).

121130013 is a wasteful number, since it uses less digits than its factorization.

121130013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3068.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 121130013 is about 11005.9080952005. The cubic root of 121130013 is about 494.7858312355.

Adding to 121130013 its reverse (310031121), we get a palindrome (431161134).

The spelling of 121130013 in words is "one hundred twenty-one million, one hundred thirty thousand, thirteen".

Divisors: 1 3 29 87 563 1689 2473 7419 16327 48981 71717 215151 1392299 4176897 40376671 121130013