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2231230123031 = 713137527333941
BaseRepresentation
bin100000011101111111101…
…011011100110000010111
321220022012021010011101212
4200131333223130300113
5243024024402414111
64425002445012035
7320125651056320
oct40357753346027
97808167104355
102231230123031
11790294266718
1230051655401b
13132533a58a90
1479dc650b447
153d08d06698b
hex2077fadcc17

2231230123031 has 32 divisors (see below), whose sum is σ = 2766780229248. Its totient is φ = 1752099010560.

The previous prime is 2231230123019. The next prime is 2231230123063. The reversal of 2231230123031 is 1303210321322.

It is a cyclic number.

It is not a de Polignac number, because 2231230123031 - 234 = 2214050253847 is a prime.

It is a super-3 number, since 3×22312301230313 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2231230122988 and 2231230123006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231230122031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65721521 + ... + 65755461.

It is an arithmetic number, because the mean of its divisors is an integer number (86461882164).

Almost surely, 22231230123031 is an apocalyptic number.

2231230123031 is a deficient number, since it is larger than the sum of its proper divisors (535550106217).

2231230123031 is a wasteful number, since it uses less digits than its factorization.

2231230123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2231230123031 its reverse (1303210321322), we get a palindrome (3534440444353).

The spelling of 2231230123031 in words is "two trillion, two hundred thirty-one billion, two hundred thirty million, one hundred twenty-three thousand, thirty-one".

Divisors: 1 7 13 91 137 959 1781 5273 12467 33941 36911 68549 237587 441233 479843 722401 3088631 4649917 5056807 9391213 32549419 60448921 65738491 178970893 423142447 1252796251 2326621609 16286351263 24519012341 171633086387 318747160433 2231230123031