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13332101231 = 75653176227
BaseRepresentation
bin11000110101010011…
…11011100001101111
31021102010200220201002
430122221323201233
5204301004214411
610042533110515
7651244663541
oct143251734157
937363626632
1013332101231
115721694a89
122700a8843b
13134612bcc7
149068d7691
155306a233b
hex31aa7b86f

13332101231 has 4 divisors (see below), whose sum is σ = 13332353112. Its totient is φ = 13331849352.

The previous prime is 13332101221. The next prime is 13332101249. The reversal of 13332101231 is 13210123331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13210123331 = 19695269649.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13332101231 is a prime.

It is a super-2 number, since 2×133321012312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13332101221) 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, 12461 + ... + 163766.

It is an arithmetic number, because the mean of its divisors is an integer number (3333088278).

Almost surely, 213332101231 is an apocalyptic number.

13332101231 is a deficient number, since it is larger than the sum of its proper divisors (251881).

13332101231 is an equidigital number, since it uses as much as digits as its factorization.

13332101231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251880.

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

Adding to 13332101231 its reverse (13210123331), we get a palindrome (26542224562).

The spelling of 13332101231 in words is "thirteen billion, three hundred thirty-two million, one hundred one thousand, two hundred thirty-one".

Divisors: 1 75653 176227 13332101231