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31321301322301 = 19286762607541
BaseRepresentation
bin1110001111100100011110…
…00010100000101000111101
311002220021202100020111120021
413013302033002200220331
513101132011114303201
6150340450204052141
76411614021333224
oct707621702405075
9132807670214507
1031321301322301
119a86320062a41
12361a340534051
1314627806c00c3
147a3d5d9a3cbb
15394b13d1bea1
hex1c7c8f0a0a3d

31321301322301 has 6 divisors (see below), whose sum is σ = 33056553473502. Its totient is φ = 29672811778680.

The previous prime is 31321301322217. The next prime is 31321301322349. The reversal of 31321301322301 is 10322310312313.

It can be written as a sum of positive squares in only one way, i.e., 30399895232100 + 921406090201 = 5513610^2 + 959899^2 .

It is not a de Polignac number, because 31321301322301 - 219 = 31321300798013 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 (31321301322001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43381303410 + ... + 43381304131.

It is an arithmetic number, because the mean of its divisors is an integer number (5509425578917).

Almost surely, 231321301322301 is an apocalyptic number.

It is an amenable number.

31321301322301 is a deficient number, since it is larger than the sum of its proper divisors (1735252151201).

31321301322301 is an equidigital number, since it uses as much as digits as its factorization.

31321301322301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86762607579 (or 86762607560 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31321301322301 its reverse (10322310312313), we get a palindrome (41643611634614).

The spelling of 31321301322301 in words is "thirty-one trillion, three hundred twenty-one billion, three hundred one million, three hundred twenty-two thousand, three hundred one".

Divisors: 1 19 361 86762607541 1648489543279 31321301322301