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133112312011231 = 719016044573033
BaseRepresentation
bin11110010001000010100000…
…000100101001100111011111
3122110022102010220010212202121
4132101002200010221213133
5114421403003333324411
61151034541341403411
740016022116254540
oct3621024004514737
9573272126125677
10133112312011231
11394606839992a3
1212b1a083b69567
13593758b5a1267
1424c29553524c7
15105c853d7a571
hex7910a01299df

133112312011231 has 4 divisors (see below), whose sum is σ = 152128356584272. Its totient is φ = 114096267438192.

The previous prime is 133112312011199. The next prime is 133112312011309. The reversal of 133112312011231 is 132110213211331.

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 133112312011231 - 25 = 133112312011199 is a prime.

It is a super-2 number, since 2×1331123120112312 (a number of 29 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 = 133112312011196 and 133112312011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133112312015231) 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, 9508022286510 + ... + 9508022286523.

It is an arithmetic number, because the mean of its divisors is an integer number (38032089146068).

Almost surely, 2133112312011231 is an apocalyptic number.

133112312011231 is a deficient number, since it is larger than the sum of its proper divisors (19016044573041).

133112312011231 is an equidigital number, since it uses as much as digits as its factorization.

133112312011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19016044573040.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 133112312011231 its reverse (132110213211331), we get a palindrome (265222525222562).

The spelling of 133112312011231 in words is "one hundred thirty-three trillion, one hundred twelve billion, three hundred twelve million, eleven thousand, two hundred thirty-one".

Divisors: 1 7 19016044573033 133112312011231