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313111301132021 = 7231999772817539
BaseRepresentation
bin100011100110001011110011…
…1111000010000111011110101
31112001122010222221011110002112
41013030113213320100323311
5312020003421042211041
63025533202422220405
7122644354634325650
oct10714274770207365
91461563887143075
10313111301132021
1190848836770047
122b14b099284705
1310593366000422
14574694c778897
15262eb24453deb
hex11cc5e7e10ef5

313111301132021 has 16 divisors (see below), whose sum is σ = 375276193536000. Its totient is φ = 255422359173168.

The previous prime is 313111301132011. The next prime is 313111301132027. The reversal of 313111301132021 is 120231103111313.

It is a cyclic number.

It is not a de Polignac number, because 313111301132021 - 214 = 313111301115637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313111301132027) 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, 4886376731 + ... + 4886440808.

It is an arithmetic number, because the mean of its divisors is an integer number (23454762096000).

Almost surely, 2313111301132021 is an apocalyptic number.

It is an amenable number.

313111301132021 is a deficient number, since it is larger than the sum of its proper divisors (62164892403979).

313111301132021 is a wasteful number, since it uses less digits than its factorization.

313111301132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9772817768.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 313111301132021 its reverse (120231103111313), we get a palindrome (433342404243334).

The spelling of 313111301132021 in words is "three hundred thirteen trillion, one hundred eleven billion, three hundred one million, one hundred thirty-two thousand, twenty-one".

Divisors: 1 7 23 161 199 1393 4577 32039 9772817539 68409722773 224774803397 1573423623779 1944790690261 13613534831827 44730185876003 313111301132021