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12201030120031 = 19420336282607
BaseRepresentation
bin1011000110001100011000…
…0100001111001001011111
31121012101222202201022022121
42301203012010033021133
53044400202202320111
641541024215123411
72366331620565634
oct261430604171137
947171882638277
1012201030120031
113984478471475
121450784373567
136a672426372c
1430276680c18b
1516259ba25871
hexb18c610f25f

12201030120031 has 4 divisors (see below), whose sum is σ = 12201038344672. Its totient is φ = 12201021895392.

The previous prime is 12201030120017. The next prime is 12201030120043. The reversal of 12201030120031 is 13002103010221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12201030120031 - 221 = 12201028022879 is a prime.

It is a super-2 number, since 2×122010301200312 (a number of 27 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 = 12201030119987 and 12201030120014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201030129031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199271 + ... + 5083336.

It is an arithmetic number, because the mean of its divisors is an integer number (3050259586168).

Almost surely, 212201030120031 is an apocalyptic number.

12201030120031 is a deficient number, since it is larger than the sum of its proper divisors (8224641).

12201030120031 is an equidigital number, since it uses as much as digits as its factorization.

12201030120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224640.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12201030120031 its reverse (13002103010221), we get a palindrome (25203133130252).

The spelling of 12201030120031 in words is "twelve trillion, two hundred one billion, thirty million, one hundred twenty thousand, thirty-one".

Divisors: 1 1942033 6282607 12201030120031