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120312031421113 = 7176171638615031
BaseRepresentation
bin11011010110110001010011…
…111001010010001010111001
3120202222201101022221120200221
4123112301103321102022321
5111232143020020433423
61103514330105100041
734225154203411150
oct3326612371221271
9522881338846627
10120312031421113
1135376056233244
12115b133ba87621
1352194b6a71b6c
14219d1c204c597
15dd98d31dee5d
hex6d6c53e522b9

120312031421113 has 16 divisors (see below), whose sum is σ = 145823628927744. Its totient is φ = 96901138414080.

The previous prime is 120312031421081. The next prime is 120312031421123. The reversal of 120312031421113 is 311124130213021.

It is not a de Polignac number, because 120312031421113 - 25 = 120312031421081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120312031421123) 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, 819234093 + ... + 819380938.

It is an arithmetic number, because the mean of its divisors is an integer number (9113976807984).

Almost surely, 2120312031421113 is an apocalyptic number.

It is an amenable number.

120312031421113 is a deficient number, since it is larger than the sum of its proper divisors (25511597506631).

120312031421113 is a wasteful number, since it uses less digits than its factorization.

120312031421113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638615672.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 120312031421113 its reverse (311124130213021), we get a palindrome (431436161634134).

The spelling of 120312031421113 in words is "one hundred twenty trillion, three hundred twelve billion, thirty-one million, four hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 7 17 119 617 4319 10489 73423 1638615031 11470305217 27856455527 194995188689 1011025474127 7077178318889 17187433060159 120312031421113