Search a number
-
+
1212320301001 = 9728144477393
BaseRepresentation
bin10001101001000011111…
…010111011111111001001
311021220012200112020200221
4101221003322323333021
5124330312444113001
62324533211230041
7153405266350645
oct21510372737711
94256180466627
101212320301001
11428162228637
12176b57748321
138a423c07744
14429688c1c25
152180662a1a1
hex11a43ebbfc9

1212320301001 has 8 divisors (see below), whose sum is σ = 1229177260584. Its totient is φ = 1195552296960.

The previous prime is 1212320300999. The next prime is 1212320301047. The reversal of 1212320301001 is 1001030232121.

It can be written as a sum of positive squares in 4 ways, for example, as 6883191225 + 1205437109776 = 82965^2 + 1097924^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1212320301001 - 21 = 1212320300999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212320304001) 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, 22211440 + ... + 22265953.

It is an arithmetic number, because the mean of its divisors is an integer number (153647157573).

Almost surely, 21212320301001 is an apocalyptic number.

It is an amenable number.

1212320301001 is a deficient number, since it is larger than the sum of its proper divisors (16856959583).

1212320301001 is an equidigital number, since it uses as much as digits as its factorization.

1212320301001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44477771.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1212320301001 its reverse (1001030232121), we get a palindrome (2213350533122).

The spelling of 1212320301001 in words is "one trillion, two hundred twelve billion, three hundred twenty million, three hundred one thousand, one".

Divisors: 1 97 281 27257 44477393 4314307121 12498147433 1212320301001