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10211311221031 = 174712780114169
BaseRepresentation
bin1001010010011000000110…
…0100111111100100100111
31100011012011211120111120001
42110212001210333210213
52314300231133033111
633415002301522131
72102512545160144
oct224460144774447
940135154514501
1010211311221031
113287657a80a78
12118b02b573347
13590bcb9cb39b
142743315753cb
1512a9464301c1
hex9498193f927

10211311221031 has 8 divisors (see below), whose sum is σ = 11042018642880. Its totient is φ = 9406164027648.

The previous prime is 10211311221029. The next prime is 10211311221049. The reversal of 10211311221031 is 13012211311201.

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 10211311221031 - 21 = 10211311221029 is a prime.

It is a super-2 number, since 2×102113112210312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211311221731) 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, 6390056286 + ... + 6390057883.

It is an arithmetic number, because the mean of its divisors is an integer number (1380252330360).

Almost surely, 210211311221031 is an apocalyptic number.

10211311221031 is a deficient number, since it is larger than the sum of its proper divisors (830707421849).

10211311221031 is a wasteful number, since it uses less digits than its factorization.

10211311221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12780114233.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 10211311221031 its reverse (13012211311201), we get a palindrome (23223522532232).

The spelling of 10211311221031 in words is "ten trillion, two hundred eleven billion, three hundred eleven million, two hundred twenty-one thousand, thirty-one".

Divisors: 1 17 47 799 12780114169 217261940873 600665365943 10211311221031