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12201010312031 = 174014993586757
BaseRepresentation
bin1011000110001100010011…
…1000101011001101011111
31121012101221101102221211222
42301203010320223031133
53044400132114441111
641541022230403555
72366331260326442
oct261430470531537
947171841387758
1012201010312031
113984468272422
1214507798005bb
136a6720119818
14302763d33659
15162599e117db
hexb18c4e2b35f

12201010312031 has 16 divisors (see below), whose sum is σ = 12976890444000. Its totient is φ = 11431708723200.

The previous prime is 12201010312021. The next prime is 12201010312067. The reversal of 12201010312031 is 13021301010221.

It is a cyclic number.

It is not a de Polignac number, because 12201010312031 - 26 = 12201010311967 is a prime.

It is a super-2 number, since 2×122010103120312 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201010312021) 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, 1608305 + ... + 5195061.

It is an arithmetic number, because the mean of its divisors is an integer number (811055652750).

Almost surely, 212201010312031 is an apocalyptic number.

12201010312031 is a deficient number, since it is larger than the sum of its proper divisors (775880131969).

12201010312031 is a wasteful number, since it uses less digits than its factorization.

12201010312031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587674.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12201010312031 its reverse (13021301010221), we get a palindrome (25222311322252).

The spelling of 12201010312031 in words is "twelve trillion, two hundred one billion, ten million, three hundred twelve thousand, thirty-one".

Divisors: 1 17 401 499 6817 8483 200099 3401683 3586757 60974869 1438289557 1789791743 24450922469 30426459631 717706488943 12201010312031