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13032021331231 = 723431882423997
BaseRepresentation
bin1011110110100100000100…
…0000001000110100011111
31201010211220222021200211021
42331221001000020310133
53202004034430044411
643414454500505011
72513350431414250
oct275510100106437
951124828250737
1013032021331231
11417493832a901
1215658396ab167
13736bb6a55ba6
14330a78abcb27
15178ed5988a71
hexbda41008d1f

13032021331231 has 16 divisors (see below), whose sum is σ = 15902717935104. Its totient is φ = 10436158633824.

The previous prime is 13032021331183. The next prime is 13032021331319. The reversal of 13032021331231 is 13213312023031.

It is not a de Polignac number, because 13032021331231 - 211 = 13032021329183 is a prime.

It is a super-2 number, since 2×130320213312312 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13032021331196 and 13032021331205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13032021331331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941205076 + ... + 941218921.

It is an arithmetic number, because the mean of its divisors is an integer number (993919870944).

Almost surely, 213032021331231 is an apocalyptic number.

13032021331231 is a deficient number, since it is larger than the sum of its proper divisors (2870696603873).

13032021331231 is a wasteful number, since it uses less digits than its factorization.

13032021331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882424070.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13032021331231 its reverse (13213312023031), we get a palindrome (26245333354262).

The spelling of 13032021331231 in words is "thirteen trillion, thirty-two billion, twenty-one million, three hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 7 23 43 161 301 989 6923 1882423997 13176967979 43295751931 80944231871 303070263517 566609623097 1861717333033 13032021331231