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13232020121 = 47535311931
BaseRepresentation
bin11000101001011000…
…01001101010011001
31021011011101021020022
430110230021222121
5204044344120441
610025000040225
7645621213065
oct142454115231
937134337208
1013232020121
115680148621
122693463075
13132b48a608
148d74c4aa5
155269d384b
hex314b09a99

13232020121 has 8 divisors (see below), whose sum is σ = 13768527744. Its totient is φ = 12706136560.

The previous prime is 13232020117. The next prime is 13232020127. The reversal of 13232020121 is 12102023231.

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

It is a cyclic number.

It is not a de Polignac number, because 13232020121 - 22 = 13232020117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13232020121.

It is not an unprimeable number, because it can be changed into a prime (13232020127) 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, 2653475 + ... + 2658456.

It is an arithmetic number, because the mean of its divisors is an integer number (1721065968).

Almost surely, 213232020121 is an apocalyptic number.

It is an amenable number.

13232020121 is a deficient number, since it is larger than the sum of its proper divisors (536507623).

13232020121 is an equidigital number, since it uses as much as digits as its factorization.

13232020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312031.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13232020121 its reverse (12102023231), we get a palindrome (25334043352).

The spelling of 13232020121 in words is "thirteen billion, two hundred thirty-two million, twenty thousand, one hundred twenty-one".

Divisors: 1 47 53 2491 5311931 249660757 281532343 13232020121