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131402230341421 = 1323439472342279
BaseRepresentation
bin11101111000001001110111…
…010000110001111100101101
3122020020221010100210011111111
4131320021313100301330231
5114210343231431411141
61143245203512352021
736451332523020604
oct3570116720617455
9566227110704444
10131402230341421
1138961411418a96
12128a27710a5611
13584223c284bc0
142463c8aaa2a3b
15102d11841a381
hex778277431f2d

131402230341421 has 8 divisors (see below), whose sum is σ = 147662707006080. Its totient is φ = 116020698361392.

The previous prime is 131402230341397. The next prime is 131402230341457. The reversal of 131402230341421 is 124143032204131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131402230341421 - 215 = 131402230308653 is a prime.

It is a super-2 number, since 2×1314022303414212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131402230342421) 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, 219736170841 + ... + 219736171438.

It is an arithmetic number, because the mean of its divisors is an integer number (18457838375760).

Almost surely, 2131402230341421 is an apocalyptic number.

It is an amenable number.

131402230341421 is a deficient number, since it is larger than the sum of its proper divisors (16260476664659).

131402230341421 is a wasteful number, since it uses less digits than its factorization.

131402230341421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439472342315.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 131402230341421 its reverse (124143032204131), we get a palindrome (255545262545552).

The spelling of 131402230341421 in words is "one hundred thirty-one trillion, four hundred two billion, two hundred thirty million, three hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 13 23 299 439472342279 5713140449627 10107863872417 131402230341421