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12031331111233 = 721720314272939
BaseRepresentation
bin1010111100010100001100…
…1101111001000101000001
31120121011222011002110111121
42233011003031321011001
53034110131231024413
641331041152312241
72351143413036100
oct257050315710501
946534864073447
1012031331111233
113919505835465
121423904542681
1369371b793665
142d8468b26037
1515ce68832b8d
hexaf143379141

12031331111233 has 12 divisors (see below), whose sum is σ = 13996444606320. Its totient is φ = 10311969337992.

The previous prime is 12031331111101. The next prime is 12031331111309. The reversal of 12031331111233 is 33211113313021.

It is not a de Polignac number, because 12031331111233 - 237 = 11893892157761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031331111198 and 12031331111207.

It is not an unprimeable number, because it can be changed into a prime (12031331111533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6293523 + ... + 7979416.

It is an arithmetic number, because the mean of its divisors is an integer number (1166370383860).

Almost surely, 212031331111233 is an apocalyptic number.

It is an amenable number.

12031331111233 is a deficient number, since it is larger than the sum of its proper divisors (1965113495087).

12031331111233 is a wasteful number, since it uses less digits than its factorization.

12031331111233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14290156 (or 14290149 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 12031331111233 its reverse (33211113313021), we get a palindrome (45242444424254).

The spelling of 12031331111233 in words is "twelve trillion, thirty-one billion, three hundred thirty-one million, one hundred eleven thousand, two hundred thirty-three".

Divisors: 1 7 49 17203 120421 842947 14272939 99910573 699374011 245537369617 1718761587319 12031331111233