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120230434431 = 345839254209
BaseRepresentation
bin110111111111001001…
…0101101011001111111
3102111100001202220010000
41233332102231121333
53432212442400211
6131122203245343
711454264554622
oct1577622553177
9374301686100
10120230434431
1146a97a449a8
121b374b19853
13b450b692c3
145b67babdb9
1531da322656
hex1bfe4ad67f

120230434431 has 20 divisors (see below), whose sum is σ = 179634954400. Its totient is φ = 80139580416.

The previous prime is 120230434409. The next prime is 120230434451. The reversal of 120230434431 is 134434032021.

120230434431 is a `hidden beast` number, since 12 + 0 + 2 + 304 + 344 + 3 + 1 = 666.

It is not a de Polignac number, because 120230434431 - 230 = 119156692607 is a prime.

It is a super-2 number, since 2×1202304344312 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120230434395 and 120230434404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120230434451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 345855 + ... + 600063.

It is an arithmetic number, because the mean of its divisors is an integer number (8981747720).

Almost surely, 2120230434431 is an apocalyptic number.

120230434431 is a deficient number, since it is larger than the sum of its proper divisors (59404519969).

120230434431 is an equidigital number, since it uses as much as digits as its factorization.

120230434431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260060 (or 260051 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 120230434431 its reverse (134434032021), we get a palindrome (254664466452).

The spelling of 120230434431 in words is "one hundred twenty billion, two hundred thirty million, four hundred thirty-four thousand, four hundred thirty-one".

Divisors: 1 3 9 27 81 5839 17517 52551 157653 254209 472959 762627 2287881 6863643 20590929 1484326351 4452979053 13358937159 40076811477 120230434431