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230031011111233 = 1667441137954513
BaseRepresentation
bin110100010011011001000100…
…101101000110000101000001
31010011110202020200012111021211
4310103121010231012011001
5220122312002321024413
62133122442044250121
766311122616062033
oct6423310455060501
91104422220174254
10230031011111233
1167327670970252
1221971674240941
139b47aa63c0997
1440b37bb819c53
151b8d97b61a83d
hexd13644b46141

230031011111233 has 4 divisors (see below), whose sum is σ = 230031150733188. Its totient is φ = 230030871489280.

The previous prime is 230031011111219. The next prime is 230031011111281. The reversal of 230031011111233 is 332111110130032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 197481384579249 + 32549626531984 = 14052807^2 + 5705228^2 .

It is a cyclic number.

It is not a de Polignac number, because 230031011111233 - 225 = 230030977556801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230031011117233) 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 3 ways as a sum of consecutive naturals, for example, 67309816 + ... + 70644697.

It is an arithmetic number, because the mean of its divisors is an integer number (57507787683297).

Almost surely, 2230031011111233 is an apocalyptic number.

It is an amenable number.

230031011111233 is a deficient number, since it is larger than the sum of its proper divisors (139621955).

230031011111233 is a wasteful number, since it uses less digits than its factorization.

230031011111233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139621954.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 230031011111233 its reverse (332111110130032), we get a palindrome (562142121241265).

The spelling of 230031011111233 in words is "two hundred thirty trillion, thirty-one billion, eleven million, one hundred eleven thousand, two hundred thirty-three".

Divisors: 1 1667441 137954513 230031011111233