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13131454033212 = 2231094287836101
BaseRepresentation
bin1011111100010110011110…
…1001110010110100111100
31201111100120121110022111020
42333011213221302310330
53210121204213030322
643532301240424140
72523500446424544
oct277054751626474
951440517408436
1013131454033212
114203022513569
121580b69478050
137433a1b79818
143357cc66a324
1517b8a4eb505c
hexbf167a72d3c

13131454033212 has 12 divisors (see below), whose sum is σ = 30640059410856. Its totient is φ = 4377151344400.

The previous prime is 13131454033177. The next prime is 13131454033213. The reversal of 13131454033212 is 21233045413131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131454033213) 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, 547143918039 + ... + 547143918062.

It is an arithmetic number, because the mean of its divisors is an integer number (2553338284238).

Almost surely, 213131454033212 is an apocalyptic number.

13131454033212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13131454033212 is an abundant number, since it is smaller than the sum of its proper divisors (17508605377644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13131454033212 is a wasteful number, since it uses less digits than its factorization.

13131454033212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094287836108 (or 1094287836106 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 13131454033212 its reverse (21233045413131), we get a palindrome (34364499446343).

The spelling of 13131454033212 in words is "thirteen trillion, one hundred thirty-one billion, four hundred fifty-four million, thirty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1094287836101 2188575672202 3282863508303 4377151344404 6565727016606 13131454033212