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120330031123 = 192736243451
BaseRepresentation
bin111000000010000111…
…0101001000000010011
3102111121000011221002101
41300010032221000103
53432413441443443
6131140122101231
711456614250161
oct1600416510023
9374530157071
10120330031123
1147039190415
121b3a234a817
13b46869b363
145b770d6231
1531e3e4784d
hex1c043a9013

120330031123 has 4 divisors (see below), whose sum is σ = 120336293848. Its totient is φ = 120323768400.

The previous prime is 120330031039. The next prime is 120330031219. The reversal of 120330031123 is 321130033021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120330031123 is a prime.

It is a super-2 number, since 2×1203300311232 (a number of 23 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 120330031123.

It is not an unprimeable number, because it can be changed into a prime (120330031223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3102453 + ... + 3140998.

It is an arithmetic number, because the mean of its divisors is an integer number (30084073462).

Almost surely, 2120330031123 is an apocalyptic number.

120330031123 is a deficient number, since it is larger than the sum of its proper divisors (6262725).

120330031123 is an equidigital number, since it uses as much as digits as its factorization.

120330031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262724.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 120330031123 its reverse (321130033021), we get a palindrome (441460064144).

The spelling of 120330031123 in words is "one hundred twenty billion, three hundred thirty million, thirty-one thousand, one hundred twenty-three".

Divisors: 1 19273 6243451 120330031123