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312113443141 = 2111479210631
BaseRepresentation
bin1001000101010110110…
…10010011000101000101
31002211121201111200211101
410202223122103011011
520103202020140031
6355214414140101
731356314331163
oct4425332230505
91084551450741
10312113443141
111104039a1435
12505a61b1631
1323580632a46
141116bc50233
1581bad8c361
hex48ab693145

312113443141 has 4 divisors (see below), whose sum is σ = 313592653984. Its totient is φ = 310634232300.

The previous prime is 312113443139. The next prime is 312113443153. The reversal of 312113443141 is 141344311213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 141344311213 = 720192044459.

It is a cyclic number.

It is not a de Polignac number, because 312113443141 - 21 = 312113443139 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 (312413443141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739605105 + ... + 739605526.

It is an arithmetic number, because the mean of its divisors is an integer number (78398163496).

Almost surely, 2312113443141 is an apocalyptic number.

It is an amenable number.

312113443141 is a deficient number, since it is larger than the sum of its proper divisors (1479210843).

312113443141 is a wasteful number, since it uses less digits than its factorization.

312113443141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479210842.

The product of its digits is 3456, while the sum is 28.

Adding to 312113443141 its reverse (141344311213), we get a palindrome (453457754354).

The spelling of 312113443141 in words is "three hundred twelve billion, one hundred thirteen million, four hundred forty-three thousand, one hundred forty-one".

Divisors: 1 211 1479210631 312113443141