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12020230210121 = 74214078802243
BaseRepresentation
bin1010111011101010110110…
…0011010100001001001001
31120120010022111210020221222
42232322231203110021021
53033414412413210441
641322003441411425
72350301336655650
oct256725543241111
946503274706858
1012020230210121
113914829650121
121421726939b75
1369266c99b313
142d7ad46ac197
1515ca18eb1d4b
hexaeead8d4249

12020230210121 has 8 divisors (see below), whose sum is σ = 13770036375744. Its totient is φ = 10278581649840.

The previous prime is 12020230210099. The next prime is 12020230210171. The reversal of 12020230210121 is 12101203202021.

12020230210121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12020230210121 - 222 = 12020226015817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12020230210121.

It is not an unprimeable number, because it can be changed into a prime (12020230210171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2039398175 + ... + 2039404068.

It is an arithmetic number, because the mean of its divisors is an integer number (1721254546968).

Almost surely, 212020230210121 is an apocalyptic number.

It is an amenable number.

12020230210121 is a deficient number, since it is larger than the sum of its proper divisors (1749806165623).

12020230210121 is an equidigital number, since it uses as much as digits as its factorization.

12020230210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078802671.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12020230210121 its reverse (12101203202021), we get a palindrome (24121433412142).

The spelling of 12020230210121 in words is "twelve trillion, twenty billion, two hundred thirty million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 7 421 2947 4078802243 28551615701 1717175744303 12020230210121