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311230211212313 = 19158382091260541
BaseRepresentation
bin100011011000011111110111…
…0001011101100010000011001
31111210222022120112121112212022
41012300333232023230100121
5311243143433032243223
63021533104001024225
7122361432524662541
oct10660775613542031
91453868515545768
10311230211212313
1190192a9a524598
122aaa6600025075
1310487b62bc1a13
1456bd8a0598321
1525eac2a8d7ac8
hex11b0fee2ec419

311230211212313 has 16 divisors (see below), whose sum is σ = 327857898297600. Its totient is φ = 294627284824320.

The previous prime is 311230211212289. The next prime is 311230211212373. The reversal of 311230211212313 is 313212112032113.

It is a de Polignac number, because none of the positive numbers 2k-311230211212313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311230211212373) 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, 246271823 + ... + 247532363.

It is an arithmetic number, because the mean of its divisors is an integer number (20491118643600).

Almost surely, 2311230211212313 is an apocalyptic number.

It is an amenable number.

311230211212313 is a deficient number, since it is larger than the sum of its proper divisors (16627687085287).

311230211212313 is a wasteful number, since it uses less digits than its factorization.

311230211212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270352.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 311230211212313 its reverse (313212112032113), we get a palindrome (624442323244426).

The spelling of 311230211212313 in words is "three hundred eleven trillion, two hundred thirty billion, two hundred eleven million, two hundred twelve thousand, three hundred thirteen".

Divisors: 1 19 1583 8209 30077 155971 1260541 12994847 23950279 246902093 1995436403 10347781069 37913291657 196607840311 16380537432227 311230211212313