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1310122001 = 4792735119
BaseRepresentation
bin100111000010110…
…1110000000010001
310101022020002112002
41032011232000101
510140342401001
6334000243345
744315565446
oct11605560021
93338202462
101310122001
11612591061
12306910555
1317b570226
14c5dd79cd
157a03e46b
hex4e16e011

1310122001 has 4 divisors (see below), whose sum is σ = 1312857600. Its totient is φ = 1307386404.

The previous prime is 1310121977. The next prime is 1310122019. The reversal of 1310122001 is 1002210131.

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: 1002210131 = 1377093087.

It is a cyclic number.

It is not a de Polignac number, because 1310122001 - 218 = 1309859857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310122501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367081 + ... + 1368038.

It is an arithmetic number, because the mean of its divisors is an integer number (328214400).

Almost surely, 21310122001 is an apocalyptic number.

It is an amenable number.

1310122001 is a deficient number, since it is larger than the sum of its proper divisors (2735599).

1310122001 is an equidigital number, since it uses as much as digits as its factorization.

1310122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735598.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1310122001 is about 36195.6074821241. The cubic root of 1310122001 is about 1094.2181476283.

Adding to 1310122001 its reverse (1002210131), we get a palindrome (2312332132).

The spelling of 1310122001 in words is "one billion, three hundred ten million, one hundred twenty-two thousand, one".

Divisors: 1 479 2735119 1310122001