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10313121233 = 12781205679
BaseRepresentation
bin10011001101011010…
…11011110111010001
3222121201221211201002
421212231123313101
5132110124334413
64423205551345
7513366040562
oct114655336721
928551854632
1010313121233
114412540698
121bb9a15555
13c848306cc
146db990169
1540560e958
hex266b5bdd1

10313121233 has 4 divisors (see below), whose sum is σ = 10394327040. Its totient is φ = 10231915428.

The previous prime is 10313121223. The next prime is 10313121251. The reversal of 10313121233 is 33212131301.

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: 33212131301 = 113467292703.

It is a cyclic number.

It is not a de Polignac number, because 10313121233 - 220 = 10312072657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10313121223) 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, 40602713 + ... + 40602966.

It is an arithmetic number, because the mean of its divisors is an integer number (2598581760).

Almost surely, 210313121233 is an apocalyptic number.

It is an amenable number.

10313121233 is a deficient number, since it is larger than the sum of its proper divisors (81205807).

10313121233 is an equidigital number, since it uses as much as digits as its factorization.

10313121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81205806.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 10313121233 its reverse (33212131301), we get a palindrome (43525252534).

The spelling of 10313121233 in words is "ten billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred thirty-three".

Divisors: 1 127 81205679 10313121233