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12131053 = 111102823
BaseRepresentation
bin101110010001…
…101011101101
3211211022200021
4232101223231
511101143203
61112002141
7205053334
oct56215355
924738607
1012131053
116936270
124090351
13268984c
14187ad1b
1510e95bd
hexb91aed

12131053 has 4 divisors (see below), whose sum is σ = 13233888. Its totient is φ = 11028220.

The previous prime is 12131027. The next prime is 12131057. The reversal of 12131053 is 35013121.

Adding to 12131053 its reverse (35013121), we get a palindrome (47144174).

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 12131053 - 29 = 12130541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131057) 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, 551401 + ... + 551422.

It is an arithmetic number, because the mean of its divisors is an integer number (3308472).

Almost surely, 212131053 is an apocalyptic number.

It is an amenable number.

12131053 is a deficient number, since it is larger than the sum of its proper divisors (1102835).

12131053 is a wasteful number, since it uses less digits than its factorization.

12131053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102834.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 12131053 is about 3482.9661209951. The cubic root of 12131053 is about 229.7732674251.

The spelling of 12131053 in words is "twelve million, one hundred thirty-one thousand, fifty-three".

Divisors: 1 11 1102823 12131053