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31231002134201 = 83645158328497
BaseRepresentation
bin1110001100111100010001…
…10010011100011010111001
311002120122200020101110112012
413012132020302130122321
513043142043021243301
6150231154015055305
76402236230031162
oct706361062343271
9132518606343465
1031231002134201
119a50aa2572461
12360493b511535
1314570bc8c575c
1479d835064769
153925cb591ebb
hex1c6788c9c6b9

31231002134201 has 8 divisors (see below), whose sum is σ = 31612179404064. Its totient is φ = 30849941534400.

The previous prime is 31231002134191. The next prime is 31231002134203. The reversal of 31231002134201 is 10243120013213.

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 31231002134201 - 214 = 31231002117817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31231002134203) 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 7 ways as a sum of consecutive naturals, for example, 28628816 + ... + 29699681.

It is an arithmetic number, because the mean of its divisors is an integer number (3951522425508).

Almost surely, 231231002134201 is an apocalyptic number.

It is an amenable number.

31231002134201 is a deficient number, since it is larger than the sum of its proper divisors (381177269863).

31231002134201 is an equidigital number, since it uses as much as digits as its factorization.

31231002134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58335031.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31231002134201 its reverse (10243120013213), we get a palindrome (41474122147414).

The spelling of 31231002134201 in words is "thirty-one trillion, two hundred thirty-one billion, two million, one hundred thirty-four thousand, two hundred one".

Divisors: 1 83 6451 535433 58328497 4841265251 376277134147 31231002134201