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140123240111231 = 1357491874884463
BaseRepresentation
bin11111110111000011111011…
…111100111001110001111111
3200101010122120112020212010022
4133313003323330321301333
5121331234343432024411
61214003421114202355
741341366341661646
oct3767037374716177
9611118515225108
10140123240111231
1140713a29045943
12138709a57233bb
136025745c6b940
142686002aa035d
15112edd8b64edb
hex7f70fbf39c7f

140123240111231 has 8 divisors (see below), whose sum is σ = 150928199352000. Its totient is φ = 129322030650912.

The previous prime is 140123240111213. The next prime is 140123240111287. The reversal of 140123240111231 is 132111042321041.

It is a happy number.

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 140123240111231 - 226 = 140123173002367 is a prime.

It is a super-2 number, since 2×1401232401112312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140123240111231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140123240111131) 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, 937367495 + ... + 937516968.

It is an arithmetic number, because the mean of its divisors is an integer number (18866024919000).

Almost surely, 2140123240111231 is an apocalyptic number.

140123240111231 is a deficient number, since it is larger than the sum of its proper divisors (10804959240769).

140123240111231 is a wasteful number, since it uses less digits than its factorization.

140123240111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874890225.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 140123240111231 its reverse (132111042321041), we get a palindrome (272234282432272).

The spelling of 140123240111231 in words is "one hundred forty trillion, one hundred twenty-three billion, two hundred forty million, one hundred eleven thousand, two hundred thirty-one".

Divisors: 1 13 5749 74737 1874884463 24373498019 10778710777787 140123240111231