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230311033131 = 34631036915991
BaseRepresentation
bin1101011001111110011…
…0110111100100101011
3211000110202211201010010
43112133212313210223
512233134111030011
6253445312423003
722432215323664
oct3263746674453
9730422751103
10230311033131
1189746635003
1238776847a63
1318944c75c3a
14b20b97236b
155ece53b1a6
hex359f9b792b

230311033131 has 16 divisors (see below), whose sum is σ = 307793546240. Its totient is φ = 153184711680.

The previous prime is 230311033097. The next prime is 230311033153. The reversal of 230311033131 is 131330113032.

It is not a de Polignac number, because 230311033131 - 225 = 230277478699 is a prime.

It is a super-2 number, since 2×2303110331312 (a number of 24 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 = 230311033098 and 230311033107.

It is not an unprimeable number, because it can be changed into a prime (230311033171) 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, 14394546 + ... + 14410536.

It is an arithmetic number, because the mean of its divisors is an integer number (19237096640).

Almost surely, 2230311033131 is an apocalyptic number.

230311033131 is a deficient number, since it is larger than the sum of its proper divisors (77482513109).

230311033131 is a wasteful number, since it uses less digits than its factorization.

230311033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26826.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 230311033131 its reverse (131330113032), we get a palindrome (361641146163).

The spelling of 230311033131 in words is "two hundred thirty billion, three hundred eleven million, thirty-three thousand, one hundred thirty-one".

Divisors: 1 3 463 1389 10369 15991 31107 47973 4800847 7403833 14402541 22211499 165810679 497432037 76770344377 230311033131