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13122288772131 = 371156806444901
BaseRepresentation
bin1011111011110100010101…
…0111000110010000100011
31201110110220212101210220010
42332331011113012100203
53204443421411202011
643524143553220003
72523024356123010
oct276750527062043
951413825353803
1013122288772131
1141aa149a07230
12157b22bb61603
137425710b6206
1433519d316707
1517b51a5421a6
hexbef455c6423

13122288772131 has 16 divisors (see below), whose sum is σ = 21813674842368. Its totient is φ = 6816773388000.

The previous prime is 13122288772031. The next prime is 13122288772213. The reversal of 13122288772131 is 13127788222131.

It is not a de Polignac number, because 13122288772131 - 27 = 13122288772003 is a prime.

It is a super-2 number, since 2×131222887721312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13122288772031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28403222220 + ... + 28403222681.

It is an arithmetic number, because the mean of its divisors is an integer number (1363354677648).

Almost surely, 213122288772131 is an apocalyptic number.

13122288772131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13122288772131 is a deficient number, since it is larger than the sum of its proper divisors (8691386070237).

13122288772131 is a wasteful number, since it uses less digits than its factorization.

13122288772131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56806444922.

The product of its digits is 451584, while the sum is 48.

The spelling of 13122288772131 in words is "thirteen trillion, one hundred twenty-two billion, two hundred eighty-eight million, seven hundred seventy-two thousand, one hundred thirty-one".

Divisors: 1 3 7 11 21 33 77 231 56806444901 170419334703 397645114307 624870893911 1192935342921 1874612681733 4374096257377 13122288772131