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312320331001 = 71931093211507
BaseRepresentation
bin1001000101101111011…
…11100000110011111001
31002212011010210200121201
410202313233200303321
520104113001043001
6355251124334201
731364406003610
oct4426757406371
91085133720551
10312320331001
111104aa759338
1250643544361
13235b445c1b3
141118b506877
1581ce107501
hex48b7be0cf9

312320331001 has 16 divisors (see below), whose sum is σ = 359116895104. Its totient is φ = 266071163904.

The previous prime is 312320330981. The next prime is 312320331007. The reversal of 312320331001 is 100133023213.

It is not a de Polignac number, because 312320331001 - 221 = 312318233849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312320331001.

It is not an unprimeable number, because it can be changed into a prime (312320331007) 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, 1370890 + ... + 1582396.

It is an arithmetic number, because the mean of its divisors is an integer number (22444805944).

Almost surely, 2312320331001 is an apocalyptic number.

It is an amenable number.

312320331001 is a deficient number, since it is larger than the sum of its proper divisors (46796564103).

312320331001 is a wasteful number, since it uses less digits than its factorization.

312320331001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212800.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 312320331001 its reverse (100133023213), we get a palindrome (412453354214).

The spelling of 312320331001 in words is "three hundred twelve billion, three hundred twenty million, three hundred thirty-one thousand, one".

Divisors: 1 7 193 1093 1351 7651 210949 211507 1476643 1480549 40820851 231177151 285745957 1618240057 44617190143 312320331001