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313312201021 = 4713150887153
BaseRepresentation
bin1001000111100101101…
…11001100100100111101
31002221201021011220111101
410203302313030210331
520113130410413041
6355533355453101
731431111524131
oct4436267144475
91087637156441
10313312201021
11110969629a26
125087b757191
1323711ab0a31
14112431393c1
15823b22eb31
hex48f2dcc93d

313312201021 has 8 divisors (see below), whose sum is σ = 322421007744. Its totient is φ = 304305168960.

The previous prime is 313312201003. The next prime is 313312201043. The reversal of 313312201021 is 120102213313.

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 313312201021 - 25 = 313312200989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313312201021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313312291021) 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, 25437420 + ... + 25449733.

It is an arithmetic number, because the mean of its divisors is an integer number (40302625968).

Almost surely, 2313312201021 is an apocalyptic number.

It is an amenable number.

313312201021 is a deficient number, since it is larger than the sum of its proper divisors (9108806723).

313312201021 is a wasteful number, since it uses less digits than its factorization.

313312201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50887331.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 313312201021 its reverse (120102213313), we get a palindrome (433414414334).

The spelling of 313312201021 in words is "three hundred thirteen billion, three hundred twelve million, two hundred one thousand, twenty-one".

Divisors: 1 47 131 6157 50887153 2391696191 6666217043 313312201021