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331131010312131 = 31717083738005613
BaseRepresentation
bin100101101001010010111001…
…0001111100110011111000011
31121102102211000110002012010220
41023102211302033212133003
5321400222302114442011
63132131252555354123
7126514266060203151
oct11322456217463703
91542384013065126
10331131010312131
1196565966831aa7
123117b4a9452943
131129c69c0c2243
145baab7d9683d1
15284372677e506
hex12d29723e67c3

331131010312131 has 16 divisors (see below), whose sum is σ = 467481822086304. Its totient is φ = 207767255412224.

The previous prime is 331131010312019. The next prime is 331131010312139. The reversal of 331131010312131 is 131213010131133.

It is a cyclic number.

It is not a de Polignac number, because 331131010312131 - 226 = 331130943203267 is a prime.

It is a super-3 number, since 3×3311310103121313 (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (331131010312139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10290120 + ... + 27715493.

It is an arithmetic number, because the mean of its divisors is an integer number (29217613880394).

Almost surely, 2331131010312131 is an apocalyptic number.

331131010312131 is a deficient number, since it is larger than the sum of its proper divisors (136350811774173).

331131010312131 is a wasteful number, since it uses less digits than its factorization.

331131010312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38176470.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 331131010312131 its reverse (131213010131133), we get a palindrome (462344020443264).

The spelling of 331131010312131 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, ten million, three hundred twelve thousand, one hundred thirty-one".

Divisors: 1 3 17 51 170837 512511 2904229 8712687 38005613 114016839 646095421 1938286263 6492764908081 19478294724243 110377003437377 331131010312131