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31321104101301 = 37330438390769
BaseRepresentation
bin1110001111100100000110…
…10010001010111110110101
311002220021020121010122012210
413013302003102022332311
513101131110122220201
6150340414441004033
76411606105102000
oct707620322127665
9132807217118183
1031321104101301
119a862297a8983
12361a2a6483619
13146274b8999a1
147a3d41706537
15394b018611d6
hex1c7c8348afb5

31321104101301 has 16 divisors (see below), whose sum is σ = 48701425232000. Its totient is φ = 17897773771584.

The previous prime is 31321104101281. The next prime is 31321104101323. The reversal of 31321104101301 is 10310140112313.

It is not a de Polignac number, because 31321104101301 - 25 = 31321104101269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321104101341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15219194356 + ... + 15219196413.

It is an arithmetic number, because the mean of its divisors is an integer number (3043839077000).

Almost surely, 231321104101301 is an apocalyptic number.

It is an amenable number.

31321104101301 is a deficient number, since it is larger than the sum of its proper divisors (17380321130699).

31321104101301 is an equidigital number, since it uses as much as digits as its factorization.

31321104101301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30438390793 (or 30438390779 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31321104101301 its reverse (10310140112313), we get a palindrome (41631244213614).

The spelling of 31321104101301 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred four million, one hundred one thousand, three hundred one".

Divisors: 1 3 7 21 49 147 343 1029 30438390769 91315172307 213068735383 639206206149 1491481147681 4474443443043 10440368033767 31321104101301