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121163030101 = 487248794723
BaseRepresentation
bin111000011010111100…
…0010001111001010101
3102120202001121122212101
41300311320101321111
53441120213430401
6131354520122101
711516350522501
oct1606570217125
9376661548771
10121163030101
114742640a923
121b595306331
13b56c136269
145c159b1301
15324213c101
hex1c35e11e55

121163030101 has 4 divisors (see below), whose sum is σ = 121411825312. Its totient is φ = 120914234892.

The previous prime is 121163030081. The next prime is 121163030143. The reversal of 121163030101 is 101030361121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101030361121 = 373270858877.

It is a cyclic number.

It is not a de Polignac number, because 121163030101 - 219 = 121162505813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121163030501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124396875 + ... + 124397848.

It is an arithmetic number, because the mean of its divisors is an integer number (30352956328).

Almost surely, 2121163030101 is an apocalyptic number.

It is an amenable number.

121163030101 is a deficient number, since it is larger than the sum of its proper divisors (248795211).

121163030101 is an equidigital number, since it uses as much as digits as its factorization.

121163030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248795210.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121163030101 its reverse (101030361121), we get a palindrome (222193391222).

The spelling of 121163030101 in words is "one hundred twenty-one billion, one hundred sixty-three million, thirty thousand, one hundred one".

Divisors: 1 487 248794723 121163030101