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2123020131001 = 72112327445771
BaseRepresentation
bin11110111001001101110…
…111000101101010111001
321111221212220221000100021
4132321031313011222321
5234240421123143001
64303145121210441
7306245263236100
oct36711567055271
97457786830307
102123020131001
11749405576040
122a3557190a21
1312527a360bb3
1474a7cd5d037
153a3581a1ba1
hex1ee4ddc5ab9

2123020131001 has 36 divisors (see below), whose sum is σ = 2816378150544. Its totient is φ = 1582375040400.

The previous prime is 2123020130981. The next prime is 2123020131013. The reversal of 2123020131001 is 1001310203212.

It is not a de Polignac number, because 2123020131001 - 25 = 2123020130969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123020131101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3437755 + ... + 4008016.

It is an arithmetic number, because the mean of its divisors is an integer number (78232726404).

Almost surely, 22123020131001 is an apocalyptic number.

It is an amenable number.

2123020131001 is a deficient number, since it is larger than the sum of its proper divisors (693358019543).

2123020131001 is a wasteful number, since it uses less digits than its factorization.

2123020131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7445842 (or 7445812 counting only the distinct ones).

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

Adding to 2123020131001 its reverse (1001310203212), we get a palindrome (3124330334213).

The spelling of 2123020131001 in words is "two trillion, one hundred twenty-three billion, twenty million, one hundred thirty-one thousand, one".

Divisors: 1 7 11 23 49 77 161 253 529 539 1127 1771 3703 5819 12397 25921 40733 285131 7445771 52120397 81903481 171252733 364842779 573324367 1198769131 1883780063 3938812859 4013270569 8391383917 13186460441 27571690013 43326941449 92305223087 193001830091 303288590143 2123020131001