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12011201331031 = 716271054631779
BaseRepresentation
bin1010111011001001001101…
…1000110111111101010111
31120112021000021100200021201
42232302103120313331113
53033242420020043111
641313511505253331
72346531523525210
oct256622330677527
946467007320251
1012011201331031
113910a16024681
12141ba27034247
13691861249306
142d74b94da407
1515c68b4cd6c1
hexaec93637f57

12011201331031 has 8 divisors (see below), whose sum is σ = 13735524302720. Its totient is φ = 10288987626168.

The previous prime is 12011201331001. The next prime is 12011201331053. The reversal of 12011201331031 is 13013310211021.

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 12011201331031 - 219 = 12011200806743 is a prime.

It is a super-2 number, since 2×120112013310312 (a number of 27 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 (12011201331001) 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, 527304501 + ... + 527327278.

It is an arithmetic number, because the mean of its divisors is an integer number (1716940537840).

Almost surely, 212011201331031 is an apocalyptic number.

12011201331031 is a deficient number, since it is larger than the sum of its proper divisors (1724322971689).

12011201331031 is a wasteful number, since it uses less digits than its factorization.

12011201331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054633413.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 12011201331031 its reverse (13013310211021), we get a palindrome (25024511542052).

The spelling of 12011201331031 in words is "twelve trillion, eleven billion, two hundred one million, three hundred thirty-one thousand, thirty-one".

Divisors: 1 7 1627 11389 1054631779 7382422453 1715885904433 12011201331031