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331020120223 = 13971000926227
BaseRepresentation
bin1001101000100100101…
…01100011000010011111
31011122102100202101222201
410310102111203002133
520410412122321343
6412022445552331
732625662411542
oct4642225430237
91148370671881
10331020120223
111184262567a1
12541a1b756a7
13252a4656c30
1412042c54859
158925b4094d
hex4d1256309f

331020120223 has 16 divisors (see below), whose sum is σ = 360208008160. Its totient is φ = 302365218816.

The previous prime is 331020120173. The next prime is 331020120227. The reversal of 331020120223 is 322021020133.

It is a cyclic number.

It is not a de Polignac number, because 331020120223 - 29 = 331020119711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331020120223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331020120227) 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, 12608236 + ... + 12634462.

It is an arithmetic number, because the mean of its divisors is an integer number (22513000510).

Almost surely, 2331020120223 is an apocalyptic number.

331020120223 is a deficient number, since it is larger than the sum of its proper divisors (29187887937).

331020120223 is a wasteful number, since it uses less digits than its factorization.

331020120223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36346.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 331020120223 its reverse (322021020133), we get a palindrome (653041140356).

The spelling of 331020120223 in words is "three hundred thirty-one billion, twenty million, one hundred twenty thousand, two hundred twenty-three".

Divisors: 1 13 97 1261 10009 26227 130117 340951 970873 2544019 12621349 33072247 262506043 3412578559 25463086171 331020120223