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31321230323101 = 199028491825871
BaseRepresentation
bin1110001111100100010101…
…10011101010110110011101
311002220021120101122100222021
413013302022303222312131
513101131334430314401
6150340435150220141
76411612200005405
oct707621263526635
9132807511570867
1031321230323101
119a86293a7a214
12361a3207b4651
13146276ba91844
147a3d543a1805
15394b0c9952a1
hex1c7c8acead9d

31321230323101 has 8 divisors (see below), whose sum is σ = 32969770704000. Its totient is φ = 29672695399680.

The previous prime is 31321230323083. The next prime is 31321230323153. The reversal of 31321230323101 is 10132303212313.

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 31321230323101 - 215 = 31321230290333 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 (31321230326101) 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, 16241196 + ... + 18067066.

It is an arithmetic number, because the mean of its divisors is an integer number (4121221338000).

Almost surely, 231321230323101 is an apocalyptic number.

It is an amenable number.

31321230323101 is a deficient number, since it is larger than the sum of its proper divisors (1648540380899).

31321230323101 is a wasteful number, since it uses less digits than its factorization.

31321230323101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728739.

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

Adding to 31321230323101 its reverse (10132303212313), we get a palindrome (41453533535414).

The spelling of 31321230323101 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred thirty million, three hundred twenty-three thousand, one hundred one".

Divisors: 1 19 902849 1825871 17154131 34691549 1648485806479 31321230323101