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1001022231013 = 7143003175859
BaseRepresentation
bin11101001000100011001…
…00110001000111100101
310112200210221221010210221
432210101210301013211
5112400043142343023
62043510244244341
7132215156400250
oct16442144610745
93480727833727
101001022231013
11356592a53212
121420083a06b1
137351bcba76c
1436642100097
151b08b38985d
hexe9119311e5

1001022231013 has 4 divisors (see below), whose sum is σ = 1144025406880. Its totient is φ = 858019055148.

The previous prime is 1001022231007. The next prime is 1001022231023. The reversal of 1001022231013 is 3101322201001.

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 1001022231013 - 213 = 1001022222821 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 (1001022231023) 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, 71501587923 + ... + 71501587936.

It is an arithmetic number, because the mean of its divisors is an integer number (286006351720).

Almost surely, 21001022231013 is an apocalyptic number.

It is an amenable number.

1001022231013 is a deficient number, since it is larger than the sum of its proper divisors (143003175867).

1001022231013 is an equidigital number, since it uses as much as digits as its factorization.

1001022231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143003175866.

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

Adding to 1001022231013 its reverse (3101322201001), we get a palindrome (4102344432014).

The spelling of 1001022231013 in words is "one trillion, one billion, twenty-two million, two hundred thirty-one thousand, thirteen".

Divisors: 1 7 143003175859 1001022231013