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10302120001 = 58611757741
BaseRepresentation
bin10011001100000110…
…11110000001000001
3222120222020220212001
421212003132001001
5132044320320001
64422134104001
7513203401165
oct114603360101
928528226761
1010302120001
114407307268
121bb61ab001
13c8247b1c4
146da328ca5
1540468a001
hex2660de041

10302120001 has 4 divisors (see below), whose sum is σ = 10303883604. Its totient is φ = 10300356400.

The previous prime is 10302119999. The next prime is 10302120007. The reversal of 10302120001 is 10002120301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10002120301 = 84347118583.

It can be written as a sum of positive squares in 2 ways, for example, as 8340072976 + 1962047025 = 91324^2 + 44295^2 .

It is a cyclic number.

It is not a de Polignac number, because 10302120001 - 21 = 10302119999 is a prime.

It is a super-2 number, since 2×103021200012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10302120001.

It is not an unprimeable number, because it can be changed into a prime (10302120007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873010 + ... + 884731.

It is an arithmetic number, because the mean of its divisors is an integer number (2575970901).

Almost surely, 210302120001 is an apocalyptic number.

It is an amenable number.

10302120001 is a deficient number, since it is larger than the sum of its proper divisors (1763603).

10302120001 is an equidigital number, since it uses as much as digits as its factorization.

10302120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763602.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10302120001 its reverse (10002120301), we get a palindrome (20304240302).

The spelling of 10302120001 in words is "ten billion, three hundred two million, one hundred twenty thousand, one".

Divisors: 1 5861 1757741 10302120001