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1001130301021 = 1239798074999
BaseRepresentation
bin11101001000110000000…
…01000001011001011101
310112201002111021122222211
432210120001001121131
5112400303324113041
62043525104440421
7132220641103204
oct16443001013135
93481074248884
101001130301021
11356638a56874
12142038619111
13735384c8506
14366525d223b
151b095ad5481
hexe91804165d

1001130301021 has 4 divisors (see below), whose sum is σ = 1001138500000. Its totient is φ = 1001122102044.

The previous prime is 1001130301007. The next prime is 1001130301153. The reversal of 1001130301021 is 1201030311001.

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.

It is a cyclic number.

It is not a de Polignac number, because 1001130301021 - 227 = 1000996083293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001130300992 and 1001130301010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001130301001) 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, 3913521 + ... + 4161478.

It is an arithmetic number, because the mean of its divisors is an integer number (250284625000).

Almost surely, 21001130301021 is an apocalyptic number.

It is an amenable number.

1001130301021 is a deficient number, since it is larger than the sum of its proper divisors (8198979).

1001130301021 is an equidigital number, since it uses as much as digits as its factorization.

1001130301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8198978.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1001130301021 its reverse (1201030311001), we get a palindrome (2202160612022).

The spelling of 1001130301021 in words is "one trillion, one billion, one hundred thirty million, three hundred one thousand, twenty-one".

Divisors: 1 123979 8074999 1001130301021