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210130121423401 = 1787571175507093
BaseRepresentation
bin101111110001110010111011…
…001111100111101000101001
31000120000020120110021111121121
4233301302323033213220221
5210020232442041022101
62022524240052135241
762155254203556424
oct5761627317475051
91016006513244547
10210130121423401
1160a5475850a713
121b698760607521
1390332544c399a
1439c64d03c89bb
151945e7782d0a1
hexbf1cbb3e7a29

210130121423401 has 4 divisors (see below), whose sum is σ = 210131297109252. Its totient is φ = 210128945737552.

The previous prime is 210130121423353. The next prime is 210130121423437. The reversal of 210130121423401 is 104324121031012.

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 47101249411225 + 163028872012176 = 6863035^2 + 12768276^2 .

It is a cyclic number.

It is not a de Polignac number, because 210130121423401 - 221 = 210130119326249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210130121423471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587574790 + ... + 587932303.

It is an arithmetic number, because the mean of its divisors is an integer number (52532824277313).

Almost surely, 2210130121423401 is an apocalyptic number.

It is an amenable number.

210130121423401 is a deficient number, since it is larger than the sum of its proper divisors (1175685851).

210130121423401 is a wasteful number, since it uses less digits than its factorization.

210130121423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175685850.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 210130121423401 its reverse (104324121031012), we get a palindrome (314454242454413).

The spelling of 210130121423401 in words is "two hundred ten trillion, one hundred thirty billion, one hundred twenty-one million, four hundred twenty-three thousand, four hundred one".

Divisors: 1 178757 1175507093 210130121423401