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312103023331 = 1143496524029
BaseRepresentation
bin1001000101010101100…
…10100011001011100011
31002211120222220022112111
410202222302203023203
520103141333221311
6355213402540151
731356126632551
oct4425262431343
91084528808474
10312103023331
111103a9024920
12505a2807657
132357b425088
141116a6dabd1
1581b9eced21
hex48aaca32e3

312103023331 has 8 divisors (see below), whose sum is σ = 340554366000. Its totient is φ = 283664737440.

The previous prime is 312103023329. The next prime is 312103023343. The reversal of 312103023331 is 133320301213.

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 312103023331 - 21 = 312103023329 is a prime.

It is a super-2 number, since 2×3121030233312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312103023391) 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, 3214176 + ... + 3309853.

It is an arithmetic number, because the mean of its divisors is an integer number (42569295750).

Almost surely, 2312103023331 is an apocalyptic number.

312103023331 is a deficient number, since it is larger than the sum of its proper divisors (28451342669).

312103023331 is a wasteful number, since it uses less digits than its factorization.

312103023331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6528389.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 312103023331 its reverse (133320301213), we get a palindrome (445423324544).

The spelling of 312103023331 in words is "three hundred twelve billion, one hundred three million, twenty-three thousand, three hundred thirty-one".

Divisors: 1 11 4349 47839 6524029 71764319 28373002121 312103023331