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331230310031111 = 17293171305255227
BaseRepresentation
bin100101101010000001001000…
…0111101111101111100000111
31121102210022022211000120102112
41023110002100331331330013
5321403334133331443421
63132245034225131235
7126524412601660061
oct11324022075757407
91542708284016375
10331230310031111
11965a3a92946657
12311967a0789b1b
13112a8b657c46ca
145bb18bd9ba731
1528460d928d45b
hex12d4090f7df07

331230310031111 has 32 divisors (see below), whose sum is σ = 379786344468480. Its totient is φ = 287184116620800.

The previous prime is 331230310031063. The next prime is 331230310031129. The reversal of 331230310031111 is 111130013032133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-331230310031111 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 (331230310031141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151542521 + ... + 153712706.

It is an arithmetic number, because the mean of its divisors is an integer number (11868323264640).

Almost surely, 2331230310031111 is an apocalyptic number.

331230310031111 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331230310031111 is a deficient number, since it is larger than the sum of its proper divisors (48556034437369).

331230310031111 is a wasteful number, since it uses less digits than its factorization.

331230310031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305255375.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 331230310031111 its reverse (111130013032133), we get a palindrome (442360323063244).

The spelling of 331230310031111 in words is "three hundred thirty-one trillion, two hundred thirty billion, three hundred ten million, thirty-one thousand, one hundred eleven".

Divisors: 1 17 29 31 71 493 527 899 1207 2059 2201 15283 35003 37417 63829 1085093 305255227 5189338859 8852401583 9462912037 21673121117 150490826911 160869504629 274424449073 368443058989 628520512393 671866754627 4665215634241 10684848710681 11421734828659 19484135884183 331230310031111