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10213131121 is a prime number
BaseRepresentation
bin10011000001100000…
…00000001101110001
3222100202210211001121
421200300000031301
5131404030143441
64405234502241
7511043116324
oct114060001561
928322724047
1010213131121
114371056636
121b90434981
13c69bc156b
146cc5a27bb
153eb95cdd1
hex260c00371

10213131121 has 2 divisors, whose sum is σ = 10213131122. Its totient is φ = 10213131120.

The previous prime is 10213131113. The next prime is 10213131143. The reversal of 10213131121 is 12113131201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8178670096 + 2034461025 = 90436^2 + 45105^2 .

It is a cyclic number.

It is not a de Polignac number, because 10213131121 - 23 = 10213131113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10213131095 and 10213131104.

It is not a weakly prime, because it can be changed into another prime (10213131151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106565560 + 5106565561.

It is an arithmetic number, because the mean of its divisors is an integer number (5106565561).

Almost surely, 210213131121 is an apocalyptic number.

It is an amenable number.

10213131121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10213131121 is an equidigital number, since it uses as much as digits as its factorization.

10213131121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 10213131121 its reverse (12113131201), we get a palindrome (22326262322).

The spelling of 10213131121 in words is "ten billion, two hundred thirteen million, one hundred thirty-one thousand, one hundred twenty-one".