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12020131031303 = 67757177400579
BaseRepresentation
bin1010111011101010011110…
…1000111110100100000111
31120120010001121011110012102
42232322213220332210013
53033414212021000203
641321545535542315
72350266023653613
oct256724750764407
946503047143172
1012020131031303
11391478866a65a
1214216b968a99b
13692655284525
142d7ac5452343
1515ca10420888
hexaeea7a3e907

12020131031303 has 4 divisors (see below), whose sum is σ = 12020308499640. Its totient is φ = 12019953562968.

The previous prime is 12020131031281. The next prime is 12020131031371. The reversal of 12020131031303 is 30313013102021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12020131031303 - 212 = 12020131027207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020131031803) 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, 88632533 + ... + 88768046.

It is an arithmetic number, because the mean of its divisors is an integer number (3005077124910).

Almost surely, 212020131031303 is an apocalyptic number.

12020131031303 is a deficient number, since it is larger than the sum of its proper divisors (177468337).

12020131031303 is an equidigital number, since it uses as much as digits as its factorization.

12020131031303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177468336.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12020131031303 its reverse (30313013102021), we get a palindrome (42333144133324).

The spelling of 12020131031303 in words is "twelve trillion, twenty billion, one hundred thirty-one million, thirty-one thousand, three hundred three".

Divisors: 1 67757 177400579 12020131031303