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13331131122997 is a prime number
BaseRepresentation
bin1100000111111110010101…
…0101011100010100110101
31202012102222110010110110001
43001333211111130110311
53221404124031413442
644204123113431301
72544066566612422
oct301774525342465
952172873113401
1013331131122997
11427a778a82516
1215b37b4a0b531
13759174308c5c
143413318d2d49
15181b8ee022b7
hexc1fe555c535

13331131122997 has 2 divisors, whose sum is σ = 13331131122998. Its totient is φ = 13331131122996.

The previous prime is 13331131122913. The next prime is 13331131123007. The reversal of 13331131122997 is 79922113113331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12616981057521 + 714150065476 = 3552039^2 + 845074^2 .

It is a cyclic number.

It is not a de Polignac number, because 13331131122997 - 215 = 13331131090229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13331131120997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665565561498 + 6665565561499.

It is an arithmetic number, because the mean of its divisors is an integer number (6665565561499).

Almost surely, 213331131122997 is an apocalyptic number.

It is an amenable number.

13331131122997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331131122997 is an equidigital number, since it uses as much as digits as its factorization.

13331131122997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 46.

The spelling of 13331131122997 in words is "thirteen trillion, three hundred thirty-one billion, one hundred thirty-one million, one hundred twenty-two thousand, nine hundred ninety-seven".