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311021001000001 = 476617468106383
BaseRepresentation
bin100011010110111110011100…
…0010010000100010001000001
31111210020022120022200121021101
41012231330320102010101001
5311231232002224000001
63021253024140054401
7122340345226344565
oct10655747022042101
91453208508617241
10311021001000001
11901122a1844586
122aa71b53b34401
1310471201700b96
1456b36d51c16a5
1525e5583ab1a01
hex11adf38484441

311021001000001 has 4 divisors (see below), whose sum is σ = 317638469106432. Its totient is φ = 304403532893572.

The previous prime is 311021000999987. The next prime is 311021001000007. The reversal of 311021001000001 is 100000100120113.

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 311021001000001 - 27 = 311021000999873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311021001000007) 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, 3308734053145 + ... + 3308734053238.

It is an arithmetic number, because the mean of its divisors is an integer number (79409617276608).

Almost surely, 2311021001000001 is an apocalyptic number.

It is an amenable number.

311021001000001 is a deficient number, since it is larger than the sum of its proper divisors (6617468106431).

311021001000001 is an equidigital number, since it uses as much as digits as its factorization.

311021001000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617468106430.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 311021001000001 its reverse (100000100120113), we get a palindrome (411021101120114).

The spelling of 311021001000001 in words is "three hundred eleven trillion, twenty-one billion, one million, one", and thus it is an aban number.

Divisors: 1 47 6617468106383 311021001000001