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312001132201 = 1128363739291
BaseRepresentation
bin1001000101001001011…
…01110111011010101001
31002211022220011201011221
410202210231313122221
520102434242212301
6355155323022041
731353451603063
oct4424455673251
91084286151157
10312001132201
11110356561580
125057466a921
132356329b875
141115ad76733
1581b10a4da1
hex48a4b776a9

312001132201 has 4 divisors (see below), whose sum is σ = 340364871504. Its totient is φ = 283637392900.

The previous prime is 312001132193. The next prime is 312001132207. The reversal of 312001132201 is 102231100213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312001132201 - 23 = 312001132193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312001132207) 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, 14181869635 + ... + 14181869656.

It is an arithmetic number, because the mean of its divisors is an integer number (85091217876).

Almost surely, 2312001132201 is an apocalyptic number.

It is an amenable number.

312001132201 is a deficient number, since it is larger than the sum of its proper divisors (28363739303).

312001132201 is a wasteful number, since it uses less digits than its factorization.

312001132201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28363739302.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 312001132201 its reverse (102231100213), we get a palindrome (414232232414).

The spelling of 312001132201 in words is "three hundred twelve billion, one million, one hundred thirty-two thousand, two hundred one".

Divisors: 1 11 28363739291 312001132201