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120230231311 = 260946082879
BaseRepresentation
bin110111111111001000…
…1111011110100001111
3102111100001101120111001
41233332101323310033
53432212414400221
6131122155041131
711454263050501
oct1577621736417
9374301346431
10120230231311
1146a97916333
121b374a401a7
13b450ac7a08
145b67b57d71
1531da2d2391
hex1bfe47bd0f

120230231311 has 4 divisors (see below), whose sum is σ = 120276316800. Its totient is φ = 120184145824.

The previous prime is 120230231293. The next prime is 120230231321. The reversal of 120230231311 is 113132032021.

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

It is a cyclic number.

It is not a de Polignac number, because 120230231311 - 211 = 120230229263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120230231321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23038831 + ... + 23044048.

It is an arithmetic number, because the mean of its divisors is an integer number (30069079200).

Almost surely, 2120230231311 is an apocalyptic number.

120230231311 is a deficient number, since it is larger than the sum of its proper divisors (46085489).

120230231311 is an equidigital number, since it uses as much as digits as its factorization.

120230231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46085488.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 120230231311 its reverse (113132032021), we get a palindrome (233362263332).

It can be divided in two parts, 120230 and 231311, that added together give a triangular number (351541 = T838).

The spelling of 120230231311 in words is "one hundred twenty billion, two hundred thirty million, two hundred thirty-one thousand, three hundred eleven".

Divisors: 1 2609 46082879 120230231311