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120230140210021 = 277434043827473
BaseRepresentation
bin11011010101100101000010…
…110011000110101101100101
3120202200220000012012000210201
4123111211002303012231211
5111224322311343210041
61103412544112150501
734216224645533452
oct3325450263065545
9522626005160721
10120230140210021
1135344352834296
12115994a6838431
135211865b92a3a
142199254056829
15dd76ddb9c631
hex6d5942cc6b65

120230140210021 has 4 divisors (see below), whose sum is σ = 120664184037772. Its totient is φ = 119796096382272.

The previous prime is 120230140209989. The next prime is 120230140210043. The reversal of 120230140210021 is 120012041032021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24506321548996 + 95723818661025 = 4950386^2 + 9783855^2 .

It is a cyclic number.

It is not a de Polignac number, because 120230140210021 - 25 = 120230140209989 is a prime.

It is a super-2 number, since 2×1202301402100212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120230140210091) 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, 217021913460 + ... + 217021914013.

It is an arithmetic number, because the mean of its divisors is an integer number (30166046009443).

Almost surely, 2120230140210021 is an apocalyptic number.

It is an amenable number.

120230140210021 is a deficient number, since it is larger than the sum of its proper divisors (434043827751).

120230140210021 is an equidigital number, since it uses as much as digits as its factorization.

120230140210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434043827750.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 120230140210021 its reverse (120012041032021), we get a palindrome (240242181242042).

The spelling of 120230140210021 in words is "one hundred twenty trillion, two hundred thirty billion, one hundred forty million, two hundred ten thousand, twenty-one".

Divisors: 1 277 434043827473 120230140210021