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1211100120233 is a prime number
BaseRepresentation
bin10001100111111011001…
…100010100010010101001
311021210001122112122100122
4101213323030110102221
5124320313112321413
62324212142413025
7153333122111423
oct21477314242251
94253048478318
101211100120233
11427696498783
12176876b91175
138a28b1987a3
144289081b813
1521784455108
hex119fb3144a9

1211100120233 has 2 divisors, whose sum is σ = 1211100120234. Its totient is φ = 1211100120232.

The previous prime is 1211100120221. The next prime is 1211100120247. The reversal of 1211100120233 is 3320210011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 970957978384 + 240142141849 = 985372^2 + 490043^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211100120233 - 212 = 1211100116137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211100170233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605550060116 + 605550060117.

It is an arithmetic number, because the mean of its divisors is an integer number (605550060117).

Almost surely, 21211100120233 is an apocalyptic number.

It is an amenable number.

1211100120233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211100120233 is an equidigital number, since it uses as much as digits as its factorization.

1211100120233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1211100120233 its reverse (3320210011121), we get a palindrome (4531310131354).

The spelling of 1211100120233 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred twenty thousand, two hundred thirty-three".