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1214124444431 = 19251367693697
BaseRepresentation
bin10001101010101111011…
…101001100101100001111
311022001212102100020012222
4101222233131030230033
5124343011324210211
62325432220245555
7153501064333223
oct21525735145417
94261772306188
101214124444431
114289a8662268
1217737b9a08bb
138a650918732
1442a9a356783
15218aec011db
hex11aaf74cb0f

1214124444431 has 16 divisors (see below), whose sum is σ = 1286615554560. Its totient is φ = 1142517312000.

The previous prime is 1214124444427. The next prime is 1214124444451. The reversal of 1214124444431 is 1344444214121.

It is a cyclic number.

It is not a de Polignac number, because 1214124444431 - 22 = 1214124444427 is a prime.

It is a super-2 number, since 2×12141244444312 (a number of 25 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 = 1214124444391 and 1214124444400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214124444451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403375 + ... + 2097071.

It is an arithmetic number, because the mean of its divisors is an integer number (80413472160).

Almost surely, 21214124444431 is an apocalyptic number.

1214124444431 is a deficient number, since it is larger than the sum of its proper divisors (72491110129).

1214124444431 is a wasteful number, since it uses less digits than its factorization.

1214124444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694334.

The product of its digits is 49152, while the sum is 35.

Adding to 1214124444431 its reverse (1344444214121), we get a palindrome (2558568658552).

The spelling of 1214124444431 in words is "one trillion, two hundred fourteen billion, one hundred twenty-four million, four hundred forty-four thousand, four hundred thirty-one".

Divisors: 1 19 251 367 4769 6973 92117 693697 1750223 13180243 174117947 254586799 3308240993 4837149181 63901286549 1214124444431