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12203230321031 = 31491219801379
BaseRepresentation
bin1011000110010100100100…
…1101010101100110000111
31121012121200002210002200112
42301211021031111212013
53044414203430233111
641542030413103235
72366440265153051
oct261451115254607
947177602702615
1012203230321031
1139853a7419002
121451099187b1b
136a69b5035709
143028d4adc8d1
15162679c81e8b
hexb1949355987

12203230321031 has 8 divisors (see below), whose sum is σ = 12596924275200. Its totient is φ = 11809538952120.

The previous prime is 12203230320989. The next prime is 12203230321043. The reversal of 12203230321031 is 13012303230221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12203230321031 is a prime.

It is a super-2 number, since 2×122032303210312 (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 = 12203230320988 and 12203230321006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203230321081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14827100 + ... + 15628478.

It is an arithmetic number, because the mean of its divisors is an integer number (1574615534400).

Almost surely, 212203230321031 is an apocalyptic number.

12203230321031 is a deficient number, since it is larger than the sum of its proper divisors (393693954169).

12203230321031 is an equidigital number, since it uses as much as digits as its factorization.

12203230321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292629.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12203230321031 its reverse (13012303230221), we get a palindrome (25215533551252).

The spelling of 12203230321031 in words is "twelve trillion, two hundred three billion, two hundred thirty million, three hundred twenty-one thousand, thirty-one".

Divisors: 1 31 491219 801379 15227789 24842749 393652591001 12203230321031