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53131323101 = 471130453683
BaseRepresentation
bin110001011110110111…
…111010011011011101
312002010210221212101112
4301132313322123131
51332303104314401
640224100351405
73560433536423
oct613667723335
9162123855345
1053131323101
112059527948a
12a3696a5565
13501971402c
14280055d113
1515ae7293bb
hexc5edfa6dd

53131323101 has 4 divisors (see below), whose sum is σ = 54261776832. Its totient is φ = 52000869372.

The previous prime is 53131323071. The next prime is 53131323137. The reversal of 53131323101 is 10132313135.

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 not a de Polignac number, because 53131323101 - 210 = 53131322077 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 (53131323191) 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, 565226795 + ... + 565226888.

It is an arithmetic number, because the mean of its divisors is an integer number (13565444208).

Almost surely, 253131323101 is an apocalyptic number.

It is an amenable number.

53131323101 is a deficient number, since it is larger than the sum of its proper divisors (1130453731).

53131323101 is a wasteful number, since it uses less digits than its factorization.

53131323101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130453730.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 53131323101 its reverse (10132313135), we get a palindrome (63263636236).

The spelling of 53131323101 in words is "fifty-three billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred one".

Divisors: 1 47 1130453683 53131323101