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131213032121103 = 3138821315065281
BaseRepresentation
bin11101110101011001101010…
…001010110110001100001111
3122012120211202210221202002020
4131311121222022312030033
5114144243242210333403
61143022233530101223
736431554153463622
oct3565315212661417
9565524683852066
10131213032121103
1138899152a08839
1212871b6ab7a813
13582a449aaa14a
142458a5d413db9
15102824342d453
hex77566a2b630f

131213032121103 has 8 divisors (see below), whose sum is σ = 174951970311216. Its totient is φ = 87474724339200.

The previous prime is 131213032121071. The next prime is 131213032121131. The reversal of 131213032121103 is 301121230312131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131213032121103 - 25 = 131213032121071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131213032121183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157116178 + ... + 157949103.

It is an arithmetic number, because the mean of its divisors is an integer number (21868996288902).

Almost surely, 2131213032121103 is an apocalyptic number.

131213032121103 is a deficient number, since it is larger than the sum of its proper divisors (43738938190113).

131213032121103 is a wasteful number, since it uses less digits than its factorization.

131213032121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315204105.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 131213032121103 its reverse (301121230312131), we get a palindrome (432334262433234).

The spelling of 131213032121103 in words is "one hundred thirty-one trillion, two hundred thirteen billion, thirty-two million, one hundred twenty-one thousand, one hundred three".

Divisors: 1 3 138821 416463 315065281 945195843 43737677373701 131213032121103