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331311123230231 = 2273893751980377
BaseRepresentation
bin100101101010100110110000…
…1110011110110111000010111
31121110002000220211022102220102
41023111031201303312320113
5321411200140021331411
63132350121232324315
7126533303326560434
oct11325154163667027
91543060824272812
10331311123230231
1196625292889221
12311aa3949a369b
13112b3674251121
145bb5788758b8b
152848268d3ed3b
hex12d5361cf6e17

331311123230231 has 8 divisors (see below), whose sum is σ = 333626095211760. Its totient is φ = 329003655210688.

The previous prime is 331311123230183. The next prime is 331311123230237. The reversal of 331311123230231 is 132032321113133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-331311123230231 is a prime.

It is a super-2 number, since 2×3313111232302312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331311123230194 and 331311123230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331311123230237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875901886 + ... + 1876078491.

It is an arithmetic number, because the mean of its divisors is an integer number (41703261901470).

Almost surely, 2331311123230231 is an apocalyptic number.

331311123230231 is a deficient number, since it is larger than the sum of its proper divisors (2314971981529).

331311123230231 is a wasteful number, since it uses less digits than its factorization.

331311123230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751980993.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 331311123230231 its reverse (132032321113133), we get a palindrome (463343444343364).

The spelling of 331311123230231 in words is "three hundred thirty-one trillion, three hundred eleven billion, one hundred twenty-three million, two hundred thirty thousand, two hundred thirty-one".

Divisors: 1 227 389 88303 3751980377 851699545579 1459520366653 331311123230231